Coolmusic BP40D Powered Acoustic Guitar Amplifier- Portable Bluetooth Speaker 80W W/Battery with Reverb Chorus Delay Effect, 6 Inputs,3 Band EQ, Blue
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Availability:
In Stock.
Arrives
Tuesday, Jun 9
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Color: Blue
Features
- 6 Inputs4 musical instrument inputs and 2 auxiliary inputs, which can fully satisfy a small band. It can connect 2 instruments (guitar, piano, keyboard, etc.), 2 microphones, two mobile phones or computers at the same time. Two independent EQ effects adjustment , Boost or attenuate the low-frequency, mid-frequency and high-frequency DB values.
- 80 WattDouble 6.5- inch woofer and Double 2-inch tweeter deliver clear, lifelike ,dynamic, powerful sound; A 80 watt continue power amplifier pumps up the volume.
- Bluetooth: Compatible with most BT devices, such as smartphone, tablet, laptop and so on, you can play accompaniment music while do guitar practice or enjoy the fun of music listening.
- Condenser microphone switch: The microphone interface is designed with 48V phantom power, compatible with condenser microphones and dynamic microphones.
- RechargeableIt can run up to 6-8 hours depends on the volume you use after 5 hours charge. And it can work with a connection directly to the electricity.
Brand: COOLMUSIC
Color: Blue
Compatible Devices: Guitar
Material: Plastic
Output Wattage: 80 Watts
Compatible Devices: Guitar
Output Wattage: 80 Watts
Number of Bands: 3
Speaker Size: 6.5 Inches
Power Source: Corded Electric
Output Channel Quantity: 2
Amplifier Type: Solid State
Connector Type: 3.5mm Jack
Color: Blue
Enclosure Material: Plastic
Brand: COOLMUSIC
Model Name: BP-40D
UPC: 768452832388
Manufacturer: COOLMUSIC
Model Number: BP40D
Mfr Part Number: SB-122
Item Dimensions D x W x H: 10.24"D x 15.75"W x 11.61"H
Item Weight: 7.2 Kilograms
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Jun 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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Black
I don't know of a single battery-powered unit that can sound this good and loud, with fine rich tones and more than the COOLMUSIC BP40D Battery Powered Amplifier and Portable Bluetooth Speaker. I purchased the BP40D back in April 2024, and after the initial charge, in late April, I only had to attempt a new charge in late July 2024. Despite playing it outdoors with my acoustic-electric Martin guitar and a microphone plugged in, the charge held, from playing at an outdoor Boy Scout Jamboree to practice at home. I was first inspired to purchase it after a fellow musician, who did a lot of small gigs at campgrounds, senior homes, and more, told me he used the BP40D and its many qualities. It is absolutely, the best fit for a single musician or two to use, with both their instruments and microphones plugged in, without sacrificing rich Bose-like quality....yet at the most reasonable price ever. The size and portability are what sold me on it. I even stopped using my Boss Katana 100 W Amp, since this Coolmusic BP40D sounded better, had better reverb and gain, was lighter to transport, and did not require a separate sound system for singing or speaking! The output was also louder and clearer than my Boss Amp, as my guitar amplifier. Serious full-time musicians or part-time music enthusiasts like me can benefit from keeping one or more of these in their arsenal. I highly recommend for first-class Bose-like quality, without breaking the bank, in these tough economic times. You won't regret it. In addition, the Coolmusic Corporate office is extremely kind, helpful, and responsive to any questions or concerns you may have. I am 100% satisfied with both the product and the manufacturer. It is the BP40D Amplifier System and Bluetooth Speaker, for your electronic music needs.
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Reviewed in the United States on August 20, 2024 by Bernie Lutchman
Color: Blue
It’s a small, quality, very portable amp with really good sound and is perfect for practice, as a personal monitor and amp in smaller, more intimate, inside gigs. It’s super easy to use and has several great features. I especially like having the 48V phantom power so both a condenser and dynamic mic scan be used. Also cool that you can live broadcast or record ideas directly into your device from an internal line. It’s small but mighty and I love the blue. The Coolmusic BP40D was also a perfect fit for my budget and I feel like I got a lot of bang for my buck.
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Reviewed in the United States on April 23, 2026 by Deanna L.
Color: Black
I LOVE this amplifier. The sound that comes out of it is outstanding for its size. I love that I can take it anywhere since it runs on a rechargeable battery. It's small, lightweight, and performs very well. It's also so small that it's easily concealable when I'm doing reenactment performances. I also love that it has four inputs which opens up more performance options. It's a great product for the price. 100% recommend.
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Reviewed in the United States on January 26, 2026 by Amazon Customer
Color: Blue
Many great features and long battery life. Clear sound. Very versatile. For the money, the feature set is tops. This one is listed as 80 watts—I do have a 30 watt Fender amp which is far louder, for comparison, but the number and types of inputs make this an astonishingly-usable, portable PA/amp. Line-in and BT work for phones to play backing music through it, but there is no EQ for those inputs and that sound option is a bit flat. The sound is “ok” for streaming music thru it, not as good as “party” BT speakers. However, I have used my phone, a mic, and guitar simultaneously and it does sound very decent in that combination. It has phantom power so you can use condenser mics, too, but for this kind of singer songwriter busker amp, a dynamic mic works better for me, anyway (less noise). My acoustic guitar with built-in preamp sounds excellent thru this amp. My electrics without external effects are “average”. It’s not specifically a guitar” amp, but more of a jack of all trades device. Seems made for busking solo or with a couple others. I’ve also used it for karaoke with my phone, usb sound card, and a mic. Have not tested it in a big space but I get an inkling you’d need the bigger models for that. I’d say this amp is good for a 30-foot radius in front of you performance—a medium room. The only thing it’s really missing is some improved EQ for line-in/BT. Overall, I like it a lot. Best in its class. The next step up is double the price, so….
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Reviewed in the United States on August 15, 2025 by I_Buy_Stuff
Color: Blue
This is an amazing amp with a ton of features, especially considering the price. I am somewhat of a casual player, and mostly use this to practice playing/singing for the occasional open-mic, or to jam with a couple neighbors in the garage, and it's been perfect for that. The multiple guitar AND mic inputs are perfect. The effects work very well, and you have volume controls for all line/mic inputs. The bluetooth capability is an added bonus, and allows me to practice along with tracks, or to use a prerecorded drum track. The build quality is also much better than expected - it's a solid/heavy amp for its size (while also being extremely portable), and I expect to get many years of service. Oh - final thought, I've also been using the amp with its mute-button engaged (another cool feature), to run the amp effects through my Focusrite audio interface, and stream online.
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Reviewed in the United States on April 19, 2026 by BCFL