BOOM Swimmer

Waterproof portable Bluetooth® powered speaker system (Black)

Item #: 830SWMRBK

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22 Reviews | 3 questions - 21 answers

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The waterproof speaker that really can go anywhere

The BOOM Swimmer is not afraid of the water. This durable little Bluetooth speaker can be immersed to a depth of 3 feet for up to 20 minutes, and it plays music wirelessly from your smartphone, tablet, or other Bluetooth-compatible device. Use it anywhere there's a chance of getting soaked — poolside, in the shower, on the slopes (but don't take it scuba diving). Not only is the Swimmer waterproof, but its rugged casing is also shock-resistant and dust-resistant, too. Perfect for a day at the beach.

BOOM Swimmer waterproof portable Bluetooth speaker

Use the Swimmer's flexible tail to mount it just about anywhere.

Flexible tail for endless mounting options

The Swimmer's flexible tail means you can mount the speaker just about anywhere. Twist it around a pole, loop it around a shower head, or around handlebars — and lots more.

Lose the tail, add more bass

The tail is detachable, so you can just set the Swimmer upright on a flat surface. The Swimmer also comes with a suction cup. Just screw it into the back and pop in on the wall. And here's a bonus: the wall reinforces the low tones. You'll notice stronger bass when the Swimmer's wall-mounted.

Convenient charging

The built-in battery lasts for up to eight hours of continuous use. Its USB charging cable can either be connected to its AC power adapter, or plugged directly into your computer for easy charging.

Product Highlights:

  • powered speaker for use with for smartphones, tablets, and other portable devices with built-in Bluetooth
  • range: 30 feet
  • waterproof down to 3 feet, while submerged for up to 20 minutes
  • shockproof and dust-resistant
  • mono full-range speaker
  • built-in rechargeable battery lasts up to 8 hours
  • detachable, bendable tail for versatile mounting options
  • optional suction cup for temporary wall mounting
  • USB charging cable with AC power adapter
  • speaker dimensions: 2-5/8"W x 2-5/8"H x 2-1/4"D
  • warranty: 1 year
  • Our 60-day money-back guarantee

Hands-on research

What's in the box?

Download owner's manual

  • Waterproof Bluetooth speaker
  • Flexible tail (installed)
  • Suction-cup
  • 48" USB charging cable
  • 48" Stereo minijack cable
  • Manual
  • Federal Communication Commision Interference Statement

Features and Specs

Weather-resistant Yes
Waterproof Yes
Speakerphone Mic No
NFC Touch Pairing No

Product Research


Bluetooth A2DP/AVRCP: The Boom Swimmer is a portable Bluetooth speaker which lets you listen to stored music and music apps wirelessly streamed from your Bluetooth-enabled device, such as your iPod touch/iPhone/iPad, Android smartphone/tablet, or computer/laptop. The Boom Swimmer supports Bluetooth A2DP and AVRCP for wireless audio streaming and control. Basic playback controls include Volume up/down, Play/Pause, and Track Forward/Reverse. This speaker pairs with your Bluetooth-enabled device with a single press of a button. Once paired, the Boom Swimmer will automatically re-connect with your device when in wireless range (up to 33').

Note: Due to the differences in Bluetooth technology, some Bluetooth enabled devices may be incompatible, function improperly, or may not support all features when used with the Boom Swimmer.

Water, Dust, & Shock Proof: The Boom Swimmer is IPX7 rated, meaning it can be immersed in 1 meter of water for 30 minutes with its tail on. Feel free to take it with you in the pool, the ocean, or even the shower. It is also dust and shock proof for extra durability.

Full-Range Speaker: The Boom Swimmer waterproof Bluetooth speaker employs a single full-range speaker powered by a built-in amplifier for surprisingly big sound from such a small speaker.

Multiple Mounting Options: On the back of the Swimmer is a flexible tail, that can be looped, twisted or snaked for endless mounting possibilities. You can also unscrew the Swimmer's tail and screw in the included suction-cup, so you can attach the Bluetooth speaker to any flat surface.

Aux Input: The Boom Swimmer is fitted with a 3.5mm auxiliary input for connecting almost any portable audio device with a headphone output. The speaker's flexible tail must be removed to access the aux input.

Rechargeable Lithium-Ion Battery: The Boom Swimmer waterproof Bluetooth speaker is powered by a built-in rechargeable Lithium-ion battery that gives you 8 hours of playback at maximum volume, or 16 hours at half volume. The Swimmer features a micro-USB (type-B) port and comes with a 48" USB charging cable so you can charge the speaker's Lithium-ion battery via a free USB (type-A) port on your computer/laptop or a USB/AC power adapter (sold separately). Completely recharging the battery takes approximately 2 hours. The speaker's flexible tail must be removed to access the micro-USB charging port.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

BOOM Swimmer Reviews

Average Customer Review:

22 reviews
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Physical Education Teacher

Written By PE Teacher, Sanford, florida on Tuesday, January 27, 2015

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • rating
    Battery Life
  • rating
    Build Quality
  • rating
  • rating

Love it and the sound is fantastic. Very easy to use and have purchased 2 to date. :))))

Pros: great sound easy to use easy to bluetooth

Cons: tail needs to be a little longer

Excellent gift

Written By Rebeca M., Miami, Fl on Sunday, December 28, 2014

Crutchfield Customer Review (What's this?)

  • "Coolness Factor"
  • Battery Life
  • Build Quality
  • Loudness
  • Portability

I gave it to my daughter as a Xmas gift and she loves it. Her first impression was't good until she listen to the music. Very happy with it.

Pros: Waterproof

Cons: None

boom swimmer speaker

Written By a, louisiana on Saturday, November 22, 2014

Crutchfield Customer Review (What's this?)

This is an awesome item great all around uses and finding new applications and uses for it every day

Pros: Small portable and convenient

Cons: Wish they made a bigger version so I could mount them on my ATV

BOOM Swimmer

Written By Anonymous, Massachusetts on Monday, November 03, 2014

Crutchfield Customer Review (What's this?)

Great sound out of a small speaker.

Pros: Easy to use. Battery life. Sound quality.

Cons: A little delicate - must be careful not to break off plastic parts.

Boom Swimmer

Written By RJ, Virginia on Friday, July 18, 2014

Crutchfield Customer Review (What's this?)

I had been wanting a Bluetooth speaker for a while, after reading reviews for a few months I decided to go ahead and pick this up due to being able to use it in the shower or outside with out being worried about water damage. It has an impressive sound for the size. It will distort at max volume but anything is going to distort at max volume. I have turned the BOOM up 2/3 of the way and then use my phone to fine tune the volume and have had no issues. The rubber seal on the back of the unit was stretched and didn't fit. Nothing trimming and some clear nail polish couldn't fix. Over all very happy with it. This will not be loud enough for a big room, it is about the size of a tennis ball.

Pros: Water Proof, Price, and color selection.

Cons: Not water proof with out the tail. My seal came stretched and I had to repair it.

Boom Swimmer

Written By John, Roy, Wa on Friday, July 11, 2014

Crutchfield Customer Review (What's this?)

This works great on my bicycle for long rides.

Pros: A great product

Cons: None

Boom Swimmer

Written By Anonymous, Schuyler, VA on Tuesday, July 08, 2014

This product is absolutely fantastic. I bought the swimmer so I could bring music out on our tubing trips on the river and couldn't be more pleased with it.

BOOM Swimmer

Written By Jeff, Statesville, NC on Friday, June 27, 2014

Crutchfield Customer Review (What's this?)

Love it great sound and function!

It's a Boomer all right!

Written By Jodygofast, Kansas CIty MO on Monday, June 23, 2014

Crutchfield Customer Review (What's this?)

I love this little guy. I pop him in the bag on top of my frame while I bike. I can crank out miles and miles with the rockin' tunes motivating me. I've tried many speakers on my bike but I can say this is the best I have found. I often have to turn it down because it's too loud. Now that is saying something. I also have the Boom Urchin and love that speaker as well.

Pros: Small, waterproof, easy to charge.

Cons: Wish it were easier to find the controls while riding but I will work that out with some marking on top.

BOOM Swimmer

Written By Chuck, Hollywood, FL on Monday, June 16, 2014

Crutchfield Customer Review (What's this?)

I have listened to small BLUETOOTH speakers before, but when I saw the waterproof Swimmer I had to have one for my bike. Ear buds are dangerous when riding. It's perfect for handlebars, and has great sound. You'll love it.

Pros: Easy link up. Great sound

Cons: A little pricey

Great Little Speaker

Written By Dean, los angels CA on Monday, June 09, 2014

Crutchfield Customer Review (What's this?)

I saw this little speaker in the Crutchfield mailer. It was attached to a bike handlebar and I thought what a great idea. With summer here what better way to cruise around than with tunes on my bike. The speaker has surprising range and loudness. Its a hit with my friends and they are lining up to get one.

Pros: Great sound and volume. Hooks up easily to your phone and lasts for hours.

Cons: The tail doesn't quite hold as well as you would think to the handlebar. And the "black" version isnt black at all. Its gray.

good product

Written By byondrepair, va. on Monday, May 12, 2014

Crutchfield Customer Review (What's this?)

Does what they say it will do. Great for shower or small room.

Pros: Adjustable tail.

Cons: Bluetooth signal is weak.

Boom Swimmer

Written By william, Oakland, CA on Monday, April 07, 2014

Crutchfield Customer Review (What's this?)

I wouldn't call this "RED" it's more red-orange. The power on/off voice is LOUD! good sound out of a little speaker, long battery life, easy to use, discreet controls. Bright-flashing operation light somewhat annoying in totally dark bedroom situation, good to locate the device, when needed, in the dark. Suction doesn't work on varnished wood for too long.


Good sound

Written By Dave, Boston on Friday, March 14, 2014

Crutchfield Customer Review (What's this?)

This little speaker has a nice solid sound. The rubberized texture gives the impression that it's a high quality piece. This is and will continue to be used in the shower listening mainly to news and sports in the morning. I'm using the "tail" to attach the speaker to the shower curtain rod. I haven't tried the suction cup attachment. The instructions do say that the speaker is waterproof only with the tail, not the suction cup. Also the speaker is heavy for its size and I question the suction cup's ability to keep this thing on the wall. Only gripe I have is the voice that announces "power on" and "power off". Wish there was some way to turn that off.

Pros: Good sound, feels like it is fairly high quality, battery life seems good so far.

Cons: Voice announcing "power on" and "power off".

this speaker is amazing

Written By cade, crestline california on Thursday, March 13, 2014

Crutchfield Customer Review (What's this?)

This speaker is amazing. Totally worth the price I request this to anyone!

Pros: Loud light durable waterproof nice bass perfect size

Cons: None

BOOM Swimmer

Written By Michael, Fort Wayne, IN on Saturday, February 15, 2014

Crutchfield Customer Review (What's this?)

Speaker works great with Bluetooth functionality. Use at work with phone to listen to music and radio...great battery life at low volume level.

Great speaker

Written By Fabian, yuma,az on Thursday, February 06, 2014

Crutchfield Customer Review (What's this?)

Great speaker, and only $60. Got it for my birthday and couldent ask for anyting better.

Pros: Loud,waterproof,shockproof,and overall good

BOOM Swimmer

Written By Bob A, Seabrook Tx. on Wednesday, January 29, 2014

Crutchfield Customer Review (What's this?)

Cant beat it for the price, Sounds good and waterproof.

Great Little Speaker

Written By Rhys P., Va Beach on Thursday, January 23, 2014

Crutchfield Customer Review (What's this?)

Synks easily with iPhone and puts out a good sound. Worth the price.

Boom Swimmer

Written By Anonymous, Okinawa, Japan on Sunday, January 19, 2014

Crutchfield Customer Review (What's this?)

Great sound in a small package. Comes with a suction cup and bendable hook attachment to allow attachment to glass surfaces or hanging from a tree branch etc...

Pros: inexpensive, great sound

Cons: N/A

Good bt h2o proof

Written By Brandon, Duluth on Thursday, January 09, 2014

This is a good sounding small speaker. Its super simple design is easy to pair with an Android phone. I love the waterproof feature. My wife and I will use it on our kayaks in Lake Superior. For the money, it's a solid buy.

Pros: H2O proof, good sound, easy to attach to whatever...

Cons: None yet

BOOM swimmer (red)

Written By Bradley, Richmond, VA on Wednesday, January 08, 2014

Crutchfield Customer Review (What's this?)

This Bluetooth speaker sounds good for its small size. The fact that it has a bendable hook, suction cup, and can stand alone is also nice. Perfect for music in the bathroom or shower since its waterproof and is plenty loud to fill a small room with music. You could use it at a pool but don't expect it to be loud enough for something like a party.

Pros: waterproof easy to operate (only has a few buttons and was super easy to sinc to an iPad) good sound for the size

Cons: None so far, just know what you are getting. A small speaker that sounds good for its size, not something that will be large enough for parties.

Questions & Answers Ask the community. Share your knowledge.

3 questions already asked

Thanks! [ Heather  Jan 20, 2015 ]
don't know but it is pretty loud for it's size and sounds good, very happy with it [ Doug  Jan 20, 2015 ]
I have no idea how many "watts" it is. I bought for my daughter. She uses it at home/work and when she is riding her bike. She says she really likes it. Several of the girls at the hair salon she works at have also bought. [ Kenneth  Jan 20, 2015 ]
I purchased this for my daughter who loves to sing in the shower and she did enjoy it but doesn't use it now because the O ring between at the end of the speaker keeps coming out. To answer your question she said that it does not shut off when not being used. Hope this helps. [ John  Dec 16, 2014 ]
I have not had mine off for a long time to find out but the battery lasts pretty long before it beeps at you to plug in [ christopher  Dec 14, 2014 ]
Not it doesn't. [ Christian  Dec 14, 2014 ]
No. I sometimes forget to shut it off. But the battery life is good and it sounds great!!!!! One of my best purchases:) [ joyce  Dec 14, 2014 ]
No. It will die and need to be recharged [ MORGAN  Dec 14, 2014 ]
Shayne B, yes you can use any button on the swimmer while in the shower, it has your basic volume up, volume down, song skip functions. Till now the only problem is that the plastic inside the tail of my swimmer broke but other than that, this swimmer can pack a punch. Definitely amazing sound. [ Fabian  Jun 21, 2014 ]
Yes [ JOHN  Jun 20, 2014 ]
Yes there is a simple adjustment on the device for the volume also a power, pause & bluetooth sync button. I use mlne in the shower everyday. [ WILLIAM B  Jun 19, 2014 ]
Yes, however this does not adjust the volume on your phone if that's what it's paired to. You can also skip songs by holding the volume plus button down for a few seconds. [ Jeremy  Jun 19, 2014 ]
Yes. There are two buttons ( + and -) for volume control. [ ELIZABETH  Jun 19, 2014 ]
Yes, volume is adjustable by clicking the + or - buttons on the speaker. [ Richard  Jun 19, 2014 ]
Yes you can, it has a power button, bluetooth sync button and volume up and down button on the speaker. It will only sync with one device at a time, so if you have more than one device, you have to resync a new device, it only remembers the last one you used, the last one you used yiu can use repeatedly without re-synching [ obeid  Jun 19, 2014 ]
The speaker has volume buttons (+ & -) on the side, so you can adjust the volume as needed. BTW, this is a GREAT SPEAKER, that produces very nice sound!! Enjoy! [ SEAN  Jun 19, 2014 ]
Yes the speaker can be adjusted at the speaker while in the shower. We love this speaker and plan on buying a couple more. [ gary  Jun 19, 2014 ]
Yes u can, however, it is not synced with the bluetooth decive. So just know that the volumes are separate. I typically turn the volume up high on one device and control the actual sound from the other device depending on which way you plan to use it. So in that case u would just use the speaker to actually control the sound. Hope that answers your question [ Tanner  Jun 19, 2014 ]
Yes. There are + and - buttons on the side of the speaker as well as the bluetooth and power buttons. [ DAVID  Jun 19, 2014 ]
Yes you can adjust the volume. [ ASHLEY  Jun 19, 2014 ]
Yes, there are volume controls on speaker. [ Michael  Jun 19, 2014 ]