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Bose

Bose SoundLink Flex Bluetooth Portable Speaker, Wireless Waterproof Speaker for Outdoor Travel - White

Based on 43,900 reviews
Condition: Used - Very Good
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$176.99

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Availability: Only 2 left in stock, order soon!
Fulfilled by Fairfaxer International
Arrives Monday, Nov 9
Order within 15 hours and 58 minutes

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At a glance

Condition
Used - Very Good
Color
White Smoke
Model
865983-0500
Dimensions
2.05"D x 7.91"W x 3.54"H
Weight
1.3 lb
Frequency Response
20 KHz
Audio Output Mode
Stereo
Warranty
1 year
Works with
Laptop, Smartphone, Tablet

Features 8

  • STATE-OF-ART DESIGN: SoundLink Flex outdoor speaker is packed with exclusive technologies and a custom-engineered transducer for deep, clear, and immersive audio at home or on the go
  • CLEAREST POSSIBLE SOUND: Proprietary Position Qtechnology automatically detects the position of your portable Bluetooth speaker for optimal sound quality in any orientation or environment
  • WATERPROOF WIRELESS SPEAKER FOR TRAVEL: SoundLink Flex is rigorously tested to meet IP67 waterproof speaker standards. Crafted and sealed with waterproof materials, it even floats ideal for outdoor adventures
  • PORTABLE BLUETOOTH SPEAKER: Built to resist water, dust, and debris, in a design that withstands drops and rust, this compact speaker goes wherever you do. Its also easy to hold and store, and resistant to corrosion and UV light

Description

The SoundLink Flex Bluetooth speaker does more than just immerse you – it provides a strong connection to your music. With crisp audio free of distortions, you’ll hear every instrument on the track and nuance in the vocals. It doesn’t matter how the portable speaker is positioned: PositionIQ technology detects its orientation and ensures the best sound. The portable Bluetooth speaker is packed with exclusive technologies. The transducer offers clear sound and deep bass. Its digital signal processing technologies, proprietary code, and custom algorithms work together for ideal sound quality wherever you are. Really, wherever, since the SoundLink Flex is an IP67 waterproof speaker. Its exterior can handle falls, the coat won’t peel or flake, and it resists corrosion and UV light. It’s also easy to hold or store, and you can secure the outdoor speaker with its utility loop. Rigorously tested to meet an IP67 rating, the SoundLink Flex is waterproof. It floats, too, so it won’t sink if it falls off your boat. For added protection from dust and debris, the Bluetooth speaker is crafted and sealed with waterproof materials. Plus, to ensure it can travel with you, Bose subjected the outdoor speaker to water, temperature, and drop tests. These proved that it’s durable enough for anything. And its battery offers up to 12 hours of unplugged play time. The Bose Connect app lets you customize the portable speaker settings, update software, and more. If your phone isn’t nearby, press and hold a button on the IP67 waterproof speaker to access your phone’s Siri or Google Assistant. A built-in microphone means you can also take and make phone calls through the SoundLink Flex. It also connects to other Bluetooth devices within 30 feet for even bigger sound.

Specs 50

Brand Bose
Speaker Maximum Output Power 5 watts
Frequency Response 20 KHz
Connectivity Technology Bluetooth
Audio Output Mode Stereo
Mounting Type No Mount
Enclosure Material Stainless Steel
Speaker Type Outdoor

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 9

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

A premium speaker in a sturdy package.
Color: Black
Review Image by Reviewer MHM 3-5
Review Image by Reviewer MHM 3-5
Review Image by Reviewer MHM 3-5
I bought this speaker because I wanted a way to listen to music while grilling in my backyard. I had no expectations of it being a “party” speaker or anything of the like. But my goodness. This speaker punched above the weight I expected and what reviewers claim. They say it’s good for less than 10 people. Probably true if in an enclosed space. Outside, standing in the corner of my backyard about 40+ feet away, the speaker volume is at about 60-70% and with the air conditioner droning on I can still hear this speaker, and the vocals are clear, the instruments are clear, and there’s even some punch of the bass. It’s so much more potent than I expected. I actually bought a second one (the one pictured) so I could utilize Party Mode and Stereo Mode, and then these are far better than they have any right to be. The bass shook through the house at about 40% volume, to the extent that my wife actually asked me to return one and get some noise cancelling headphones if I wanted to be blaring music all day. 😂 So (for now), I’m obliging and returning one, but honestly, I don’t want to. One of these speakers are great. Two make a great portable stereo system. Now for the feature set. Key selling points for me were: 1. Durability. It’s made of steel and silicone, is rated to withstand a dunk in water and dust. You can enjoy this in the yard, on your workbench, swimming, shower, etc. I live in high desert, and the wind blew over these speakers from a table to the ground and they didn’t have a single dent or scratch. Which leads me to… 2. The device has sensors built in that detect its positioning, so the sound quality was maintained even if it’s on its back, side, or face down. None of the other products that compete in this segment offer that function to my knowledge. 3. Unlike other products that I considered, this sounded good right out of the box. Anker (Soundcore) offers some great competition in this segment, but needs the EQ tweaked to shine. They’re not bad by any means, but I wanted things to just be simple. Power on and go without fuss. Bose delivered that. There are similar products for sure. Ultimate Ears will also let you pair two portables to create a stereo, but it lacked the intelligence that this speaker did. We already covered Soundcore. Tweak with the EQ, save some money, you’ll likely be happy. These speakers do often go on sale, and I purchased mine used (like new) and refurbished respectively. The “Used” unit was actually brand new from Amazon, broke the seals on the box and everything. Far as I could tell, the speaker just rolled around in someone’s trunk unopened before returning. The box had some cosmetic damage but no dents, broken seals, and all accessories were obviously also unopened. Refurbished unit came straight from Bose. Also came with all accessories and literature, just a box that was labeled “Refurbished”. Warranty on refurbished or new are 1 year regardless. I bring this up to encourage you to save some money, reduce some e-waste, and buy secondhand like I did. No judgments if you want to go new of course! But I got 2 speakers, one that was new in reality, essentially $100 off the set, and I didn’t miss out on anything in terms of product or warranty. $150 is pricey for a speaker, but $103 for a Bose speaker is not. Especially one that can literally go for a swim. Four criticisms I’d like y’all to know. First, compression above about 75% volume. Your bass will flatline above this point to maintain clarity of the track as a whole. In reality, that just means you go from a slightly warm tone to a very neutral tone of sound profile. No big deal unless you’re blasting EDM, Hip-Hop, the like. As I said, this little 20W speaker carries enough punch that 70% was more than enough to fill my backyard. Second criticism is no biggie for me, but worth bringing up for those shopping the competition. I didn’t want to fuss with an EQ, but competitors do have them to fine tune your sound. Consequentially, the app is basically useless beyond seeing your battery life and an option on how to do party mode (not required). Third criticism is truly a nitpick, but why do I have two apps for my Bose products? Why do I need one for headphones and one for speakers? Wish Bose would put all their portable speakers and headphones into one app. You could easily knock out criticisms 3-4 by just putting this speaker into the Bose Music app, like my QuietComfort Headphones, and this VERY speaker's big brother, the Soundlink Flex Max, is already there. Why the heck is the Soundlink Flex not in Bose Music, with a basic EQ like the others? Fourth, this uses outdated Bluetooth. No big deal. Pairs easily. But don’t expect to watch movies or game off of this. Latency is too high. Anyhow, enough of that. Go buy one. Or better yet, two. You won’t be disappointed. ... show more
Reviewed in the United States on July 2, 2024 by Reviewer MHM 3-5
Simply great.
Color: Black
I have thoroughly enjoyed my entire ownership of this speaker. Time of writing this review is roughly 8 months after purchase, having used this speaker practically every single day since. This was a replacement for a very well-loved but somewhat lacking B&O (P3?) oval-shaped speaker that inspired of few of my must-have features. My key requirements in purchasing a speaker at this price point were: - Punchy, solid bass, with high accuracy, clear playback throughout most of the volume range - Relatively attractive, understated, simple design with ergonomic and intuitive controls - Easily oriented for high quality playback in a variety of different situations (facing sideways, upwards, at angles) - Long-lasting battery without any obnoxious constant playback interruptions informing you of battery life remaining This speaker delivers on all of these. The bass is incredibly clear, with no horrible warbling and distortion that’s very common with dozens of other similar speakers. The audio playback is very crisp and clear, with no noticeable quality losses. I’m sure it’s not perfect, but it’s more than adequate for 95%+ of people. Even at low volumes, the quality is still extremely high. There is a usable, enjoyable sound at every volume level. The design is simple, but handsome. It does not look obnoxious or out of place anywhere. It is just the right size, not too large to pop into a bag, and not too small as to have low-power drivers with poor sound. Very easy to transport. The squared design makes it very stable on most surfaces, but is still rounded enough not to get caught on things. The controls are very easy to understand, even the multi-device Bluetooth cycling and syncing. I have no complaints. The speaker works well for playback in nearly any position, especially when placed on a table or other nice playback surface. It can be placed facing upward, and the speaker enhances playback for all-around sound. When placed horizontally, the same happens for directional playback. Very impressive stability in a wide variety of situations. Some would consider the lack of a lanyard or string to be a downside for this point, but there is massive benefits to keeping this speaker on a surface. The battery life is incredible. Vastly longer than I had really expected for this speaker. With my personal usage (middle volume range, 2-3 uses a day for 30 to 60 minutes at a time), I usually recharge every 1-2 weeks. Not sure what exactly that equates to in real playback time, but I still find it impressive. The speaker will notify you at 20% and 10% battery level, which is exactly what I wanted. Many other speakers will interrupt playback at 75%, 50%, etc. I’ve not experienced any noticeable battery decay during my ownership, but I have only fully depleted and nearly fully recharged the entire time, with no “filling up” in between. Downsides do exist, but most are inconsequential for me. - The audible indicators that inform you of which device you are connected to can sometimes feel a bit sluggish, especially with long device names. - I feel the price point is still a bit on the high side for the value, but I feel I’ve more than gotten my money’s worth. I just like a good deal. - Volume occasionally spikes very high in certain scenarios when switching between devices, but is fairly easily turned down after a quick scare. I would highly recommend this speaker to anyone in the market for a speaker at this price point. This is an especially good deal on sale. If you’re still reading at this point, just get the damn thing on the way. ... show more
Reviewed in the United States on May 4, 2024 by Jake
Excellent sound quality
Color: Black
OK so I have been using this product now for approximately 24 hours and I must say that I am highly impressed with the quality of the sound as well as how easy it was to use. I will be providing a this review so that you can make your own decision prior to purchase. So immediately from the start I did notice that the speakers were very heavy indicating high quality product and high quality magnates were used in this speaker. So the speaker itself weighs approximately 2 pounds and seems to be very durable .I did charge the speaker for approximately 2 1/2 hours until it reached full. You can tell the percentage level by pressing the power button once I then downloaded the bose connect app and installed it as normal. I did notice it came up with two blue tooth connections one I believe is for the app and one is if you don't use the app and just decide to hook it directly to bluetooith. Once the app was paired I was able to play music through it. While the plain non equalized sound is good I feel it could be better. Which is why I used the equalizer built into my phone to adjust the sound. The Bass in this small speaker is a much better and much more defined than most bluetooith speakers currently on the market. I have had the privilege of using professional grade speakers as well as lower grade speakers and I will tell you that that this does measure up to professional grade sound. Keep in mind, the sound quality is only going to be as good as the music you put through the speaker. I had put high definition audio through this speaker and it was crystal clear. At lower volumes and high volumes. There was almost no distortion detectable however I did notice some at a very high volume when the brunt of the speaker was covered. Please note do not cover the brunt of the speaker as this is I believe classified as an open air speaker which is what defines its bass. So let's get on to the specifics now. The battery, it's not bad I had this playing at about 60% volume for approximately 7 1/2 hours straight and for the remainder half hour it was on the maximum volume and when I finally shut it off it still had 30% power remaining. That being said, I believe this should easily get between 10 and 12 HRS to a full charge. It does take approximately 4 hours to charge it from almost nothing . But if you have a three amp charger like I have it does appear to go a little quicker. One thing to keep in mind and it is recommended that you use the charging cord that comes with the unit is that if you use an extended cord it will take longer to charge. This is why bose recommends using their charge cord. I will say that im highly satisfied with this purchase. And feel very comfortable giving this a five star rating despite the 4 hour charge time. The speaker measures approximately 3 1/2 inch by 8 inches with a 1½ inch fabric a loop the depth of this speaker measures at about 2 inches. One thing that I should know right now is that this does not come with a Caribeaner clip. I will recommend that if you like the option of using the clip then you should definitely get a clip with a flat base so that it will fit correctly. So to sum up this review this is a no brainer and bose has continued to make their presence known for quality over quantity. Even in the harsh economic environment of the United States this $139 speaker packs a punch of easily a 200 dollar speaker. If you are looking for a great sounding long lasting bluetooith speaker look no further because this is it. As with all of my reviews I do recommend that you follow them because I will be updating them periodically sell as to keep you properly informed. ... show more
Reviewed in the United States on May 4, 2022 by Tango's product reviews
Fabulous Bluetooth Speaker
When the Bose SoundLink Flex was introduced in 2021, I was not particularly in the market for a bluetooth speaker. My little Sony speakers met most of my needs and still do situationally. Several months ago, however, I was again looking for an additional bluetooth speaker. My research started with the Bose SoundLink Micro, which I love but is again a situational speaker. After my research ruled out many other brands, and after asking no fewer than several dozen questions of a Bose representative via Facebook Messenger, I ordered a plate-full of crow along with a SoundLink Flex which was on sale. As a matter of full disclosure, I enjoy various genres of music. My natural hearing diminished and has thankfully been restored through bilateral cochlear implants. The cochlear sound differs from natural hearing, though both are similar. With that said, a speaker which produces premium audio quality is crucial. Other necessities are affordability, portability, durability, ruggedness and especially reasonable battery life. The Flex meets all of my needs and is my go-to speaker. The Soundlink Micro, Revolve Plus and Mini II SE speakers are likewise fabulous, but there is only one Flex. My only negative experience with the Flex was purchasing a couple from the Bose Refurbished Store. Fortunately, Bose has fixed the issues with these but henceforth, I will pay a few more bucks and purchase Bose speakers brand new. At present, I own four of these Flex speakers, one of each color variant. I rotate between these and may even consider purchasing a couple more when a bargain can be had. The Flex is lightweight, compact and delivers as advertised. Yes, I still use my other speakers situationally, but again, the Flex is my speaker of choice. Pairing to an iPhone and then the Bose connect app is easy, as is pairing 2 together for stereo. Most reviews speak glowingly of the Flex and for good reason. Plus if there is ever an issue, Bose will absolutely assist with servicing or replacing if need be. So if my review has helped any of you who may be wavering on the Flex, then it was worth every single typing tap. In this price range, the Flex is hands down the very best speaker available. ... show more
Reviewed in the United States on July 13, 2023 by Steve
Best clear sounding speaker I’ve owned so far
Color: Black
Bought this back in Nov 2022, used this mainly for work in the Operating room blasting house/EDM at 0730 while the ortho bros are fixing bone. Writing review now cause the battery finally gave out and won’t hold charge. Very solid speaker, Clear sound, decent battery life. Pairs and connects relatively quick. ... show more
Reviewed in the United States on August 26, 2026 by Eric
Worth the Money
Color: Stone Blue
Review Image by JB
My perfect speaker would be the size of my Soundmatters Dash 7 and sound like my Marshall Woburn. I haven't found it yet, so I keep looking. The Bose Soundlink Flex is certainly not that perfect speaker. It sounds very good but like every speaker you see pictured, it has its shortcomings. Because the Flex and Emberton II are the cream of my 'portables', that is where I spent most of my time doing comparisons. Battery life - If I am goingt to listen for several hours, I will have a charger available, portable if needed. This is a non-issue for me. 12 hours is sufficient imo. Ease of use - I had trouble with the initial connection to my Fold 3. Once connected, it's been flawless. App - I'm tired of apps. I don't use them. It needs to sound good out of the box.....and the Flex does. EDIT: I had to download the app just to turn off the unbelievably annoying and loud voice prompts. It took 4 tries to get connected on the app and has no other useful function that I see. I deleted a star. Latency - The Flex has more lag than the Emberton II if you plan to pair with video. Volume - this speaker does not get very loud and distorts over 60% volume. I can measure later but guessing around 80-85dbs at 3 meters is all you're going to get before losing fidelity. The sad thing is...it's louder than the Emberton and the bass is punchier. Anyway, neither is my idea of a "party speaker". And most important sound quality: The Bose sounds very good out of the box. It's a more powerful speaker than the Emberton II. The bass is pretty awesome until its not. The Bose hits on lower notes than the Emberton II but with a caveat. Once you get so low, the Marshall's bass simply disappears. On the Bose, once you get so low, you lose tonal separation and the bass sounds artificial to me. There is definitely a peak in the treble on the Bose, too. Highs can be a little harsh at times. The sound is more technical on the Bose, whereas the highs on the Marshall are rounded and warm. Vocals and instruments in the mid frequency range just sound better to me on the Marshall in general. Bass sounds better on the Bose. Pick your poison. Like I said, neither are perfect but both are pretty dang good. ... show more
Reviewed in the United States on April 9, 2025 by JB
Well Worth the Investment Due to Good Quality and Design
Color: Black
This speaker was the second replacement I purchased, and I am glad I did. In stark contrast to the first one I bought, this unit is solidly built and well constructed. It feels and looks very sturdy and doesn't give me the impression that it will be easily broken or damaged. The design is better than that of other speakers I've owned in the past. It has a good, broad surface area, so the sound isn't at all tinny, and due to its shape, it does not fall over, even if put onto a softer surface. Getting it paired to my device was fairly easy. I like the layout of the buttons. I really did not expect a speaker this size to sound great. I wasn't in the market for something that could dominate an outdoor party, so this would have been tolerable. However, I am very pleased with the sound quality. It's neither too tinny nor too heavy, and I find it works just as well for music as it does for other audio. Mainly, I use it in my room to read audio books, and it does a good job; I'm sure it would be quite a nice choice for those of you who actually are looking for something to use outdoors. To get that good sound from it, you don't have to blare the volume or turn it too far down, and the sound quality is superior to that of some larger speakers. There are a couple of other nice features I sincerely appreciate. First, I frankly find it obnoxious that when you turn on many speakers, or turn them back off again, for that matter, they play an annoying, little bit of music that is far too loud and impossible to disable. I'd rather have them simply beep, if that much, or do as this one does and give you the percent of battery power left. I like that this takes a USB-C cable--no more irritating, fragile micro USB for me. Its battery life is quite good, which helps me because I sometimes tend to forget to charge my things. Last but not least, this speaker is the only one I've had that beeps to acknowledge that it is charging when you plug it in. The sound is unobtrusive and quiet, which I prefer. Overall, you'll find this to be a very wise buy. You can get cheaper units, certainly, but spend a bit for this, and you won't regret it. ... show more
Reviewed in the United States on January 2, 2024 by Amy
Amazing sound in small footprint
Color: Black
I have a JBL Flip 4 that I’ve had for 5 years; a very handy speaker with decent sound and long battery life. I was wondering about getting a different Bluetooth speaker and I heard one of these at work that a coworker brought in. It had really good sound in a small package with extra bass but not to boomy; just a nice overall sound field. When I got the speaker delivered from Amazon, I tested it out with a variety of different music. Whether the speaker is facing forward or straight up, It has nice clarity and dynamic range, good bass response and it also allows you to talk or respond to messages because it has a built-in microphone. It sounds very good with music as well as podcasts. It paired very fast and easily , I also like how it shows the battery life on your iPhone widget screen whereas the JBL does not. I also bought a JBL Flip 6 to try out but the sound difference between this and that is striking. This has much better sound than the Flip 6. The cabinet feels smooth and rubbery and soft and it still is a small enough size for portability. The sound is even better when it’s near a wall or corner as it amplifies the bass response. Such as on the kitchen counter. Overall I am extremely pleased with the speaker and I believe it has fantastic sound for the size - much better than anything of similar size. Battery life is stated as 12 hrs. Yesterday I was playing it for 2-3 hrs. at 1/2 volume and it decreased only 10%. One gripe is that the USB-C charge cable is super short, only 20” long. So I ordered a 3-ft. Cable. The build quality appears excellent, and wow I am still amazed by how good it sounds. It is more expensive than the Flip 6, but if I enjoy it more, and plan to use it for the next 3-4 years, that price difference is small. What can I say? I love it. Additional information: have noticed now listening to it a few days that when your head is higher than the speaker and it is aiming forward, there seems to be less audio clarity and more bass but when I lay it flat where it aims up, there’s better audio clarity for speaking, Podcasts or music. So it appears that whatever your head level is and where the speaker is can affect the sound characteristics. I have also noticed that placing it near a wall, or in a corner, or on a counter under the cupboards significantly adds to the bass response. Overall, it has excellent sound, good battery life, and seems like a great speaker. In fact, I dictated all this additional info text from the speaker microphone to my phone. ... show more
Reviewed in the United States on August 20, 2023 by Mr. Walker
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