Search  for anything...
Bose

Bose SoundLink Flex Bluetooth Speaker, Portable Speaker with Microphone, Wireless Waterproof Speaker for Travel, Outdoor and Pool Use, Carmine Red

  • Based on 4,075 reviews
Condition: Used - Like New
Checking for the best price...
$255.46 Why this price?
Save $143.54 was $399.00

Buy Now, Pay Later

As low as $42.58 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 1 left in stock, order soon!
Fulfilled by JM3308
Arrives May 3 – May 17
Order within 14 hours and 22 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Color: Carmine Red


Pattern: Speaker


Features

  • 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
  • RECHARGEABLE BATTERY: Portable speaker charges through USB-C cable (included). Lithium-ion battery offers up to 12 hours of life per charge
  • BUILT-IN MICROPHONE: You can make and receive calls through the portable Bluetooth speaker. Just one button accesses your phone's Siri or Google Assistant voice input
  • BLUETOOTH WIRELESS SPEAKER: SoundLink Flex pairs with Bluetooth-enabled devices like phones and additional Bose speakers within a range of 30 feet
  • BOSE CONNECT APP: App automatically updates the portable Bluetooth speaker with the latest software, allows you to customize settings, unlock product features, and more
  • BOSE SIMPLESYNC TECHNOLOGY: SimpleSync pairs your Bose SoundLink Flex Bluetooth Speaker to compatible Bose products for sound that follows you from room to room. Away from your phone. Press and hold the Bluetooth button on each device to sync their sound. Already got a group going. Link by pressing the Action button to connect at a moments notice

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.

Brand: Bose


Speaker Maximum Output Power: 5 Watts


Connectivity Technology: wired, wireless


Audio Output Mode: Stereo


Mounting Type: Freestanding


Audio Output Mode: Stereo


Mounting Type: Freestanding


Enclosure Material: Plastic, Silicone


Speaker Type: Portable Speaker


Additional Features: Waterproof


Antenna Location: For Outdoor Use, For Indoor Use


Color: Carmine Red


Is Waterproof: true


Warranty Type: Limited


Control Method: App, Touch


Speaker Size: 10 Centimeters


Water Resistance Level: Waterproof


Bluetooth Range: 30 Feet


Total Ethernet Ports: 1


Number of Microphones: 1


MP3 player: No


Battery Average Life: 12 Hours


Controller Type: Button


Total USB 2.0 Ports: 1


Unit Count: 1.0 Count


Item Dimensions D x W x H: 2.06"D x 3.56"W x 7.93"H


Item Weight: 0.58 Kilograms


Compatible Devices: Laptop, Other Bose Devices, Smartphone


Battery Charge Time: 12 Hours


Battery Capacity: 12000 Milliamp Hours


Brand: Bose


Model Number: 865983-0400


Model Name: SoundLink Flex


Built-In Media: Quick Start Guide, Safety Sheet, SoundLink Flex Bluetooth speaker, USB-C to USB-A charging cable (black)


Warranty Description: 1 Year Manufacturer


Number of Items: 1


UPC: 017817832076


Manufacturer: Bose


Age Range Description: Adult


Item Type Name: Bose SoundLink Flex Bluetooth Speaker, Portable Speaker with Microphone, Wireless Waterproof Speaker for Travel, Outdoor and Pool Use, Carmine Red


Speaker Maximum Output Power: 5 Watts


Number of Power Levels: 1


Signal-to-Noise Ratio: 81.6 dB


Connectivity Technology: wired, wireless


Wireless Technology: Bluetooth


Subwoofer Connectivity Technology: Wireless


Connectivity Protocol: Bluetooth


Power Source: Battery Powered


Number of Batteries: 1 Lithium Ion batteries required. (included)


Audio Driver Type: Dynamic Driver


Number Of Circuits: 1


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 3 – May 17

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon 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
    • Practically indestructible. Great speaker
This speaker has been dropped, left in the rain and totally dirty on multiple occasions and has never given an issue.
Reviewed in the United States on April 7, 2026 by David Poole
    • Terrific sound in a small portable speaker
Love these small, portable Bose speakers. We’ve now bought 5 of them total for us and as gifts. Terrific, clear sound for size and price. Holds a charge for a very long time. Great for our pool area, to take to tailgates, outside working in the yard etc. East to pair to iPhone. Definitely recommend.
Reviewed in the United States on August 12, 2025 by Picture Taker
    • Great sound - Nice color
Great speaker !!!!
Reviewed in the United States on March 20, 2026 by Greg Ferrara
    • So amazing I ended get a second one!
First off its Bose so you can't go wrong with the quality of design and sound. To use them you must download the bose app, but after that the connectivity is awesome. Not a real heavy speaker but provides amazing sound in an office or even paired up at a campsite for music for all. Super easy to take with anywhere with the nylon strap that is installed on the speaker so you can hang it up or on a tree or whatever. The fully charged unit using at moderate volume will last a good 20 hours or at least mine did on last camping trip. The sound quality is incredible! Good solid bass and all the middle and highs you would want to for any type of music. These do not disappoint at all.they are made in bose fashion and seem to be pretty durable through the use i have put them through. One has a little dent on the steel grill protecting the speaker but it held up great and had no effect on sound quality. A great speaker for many uses. ... show more
Reviewed in the United States on November 6, 2023 by D-Rain
    • Sounds GREAT, but carmine RED??
Ok, let me start out by saying I'm impressed with the sound (5 stars) coming out of this little thing! I had the JBL and it was ok, a little disappointing imo which is a good thing bc it led me to buy this. I've only had it a few hours but so far anything I've played has been clear and thumps pretty good, especially for it's size. I've had it almost full blast and heard it clearly from across the house (It gets LOUD). I didn't hear any distortion in what I was playing. So, the downside......I ordered the carmine and am considering sending it back for black or slate blue bc this "carmine" red is BROWN! Very unhappy with the color, but sound is awesome! I've had quite a few Bluetooth speakers and this one is by far the best. Takes approx 3 hrs to fully charge. Has no charge when you get it. You can listen to it while it's charging at least. I have a Google Pixel phone and had to install the app to get it to connect to my Bluetooth but so far that's not been an issue. It's got some weight to it, as in it feels solid built, not cheap. So far so good! ... show more
Reviewed in the United States on July 3, 2023 by CJ
    • Great sound, portable speakers!
Amazing sound, I love them, long battery life, very portable, sound great especially when paired together in stereo mode.
Reviewed in the United States on August 15, 2025 by Leo
    • Love These Speakers...
They Pair Easily, But Depending On What You're Playing, They Do Roll From Side To Side Audio Wise... So It's Not A Flawless Dual Speaker Connection... They Sound Great For Their Size, For Their Cost I Had A Friends Single Speaker HK Onyx Studio (1) Speaker Kill Two Of These On A Side By Side Comparison In A Big Living Room... But The HK Is Ugly And My Bose Flex With It's Silicone Case Is Cool Looking, Small, Plus I Have 2 "Lmao"... So It Is What It Is For It's Size. (NOTE: MY Bose Sound Dock (Single Speaker) Also Killed These BABIES) The Bose Sound Dock Like HK Onyx Studio Is Just Bigger And Delivers A Smoother Deeper Base And Sound... Size Does Make A Difference When The Base Is The Focus... ... show more
Reviewed in the United States on December 1, 2023 by Me, Not You, Just Me

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...