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Dolphin BoxParty 18-Inch Rechargeable Bluetooth Party Speaker – Deep Bass, High Power Sound, Wireless Microphones, USB/SD, AUX & Guitar Inputs, Extended Battery Life, 12V Input

  • Based on 79 reviews
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FREE refund/replacement until Jan 31, 2026

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Availability: In Stock.
Fulfilled by General Sound Co

Arrives Friday, Apr 3
Order within 12 hours and 22 minutes
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Features

  • POWERFUL Deep Bass & Crisp Sound: With a peak power of 120 RMS Watt and an 18-inch woofer, the Dolphin SP-18RBT delivers room-shaking bass and crystal-clear sound, ensuring every note and beat of your music is heard in stunning clarity, making it perfect for parties, DJ events, and live performances.
  • Wireless Microphones & Versatile Connectivity: Comes equipped with wireless microphones for karaoke, announcements, or speeches, along with a plethora of connectivity options including USB, SD, AUX, and guitar inputs, catering to all your entertainment needs without the hassle of wires.
  • Dynamic LED Party Lights: Create the perfect party atmosphere with vibrant LED lights that sync to the beat of your music, adding an exciting visual dimension to your audio experience, guaranteed to impress guests and keep the party going all night long.
  • Extended Battery Life with 12V Input: Enjoy hours of non-stop music thanks to the long-lasting battery, and for events that last even longer, easily keep the party alive with the 12V input option, ensuring your speaker is powered up and ready to go whenever and wherever you are.
  • Portable Design for Easy Mobility: Designed with convenience in mind, the SP-18RBT features a built-in trolley handle and wheels, making it effortlessly portable for both indoor and outdoor events. Whether its a beach party, a wedding, or a tailgate, transport your ultimate sound experience with ease.

Brand: Dolphin


Item dimensions L x W x H: 17.4 x 20.9 x 31.7 inches


Connectivity Technology: AUX, Bluetooth, USB


Color: Black


Compatible Devices: Android, Smartphone, iPhone


Mounting Type: Portable


Power Source: Battery Powered


Connector Type: Aux, USB


Material: Engineered Wood, Metal, Plastic


Item Weight: 40 Pounds


Number of Channels: 3


Audio Input: Wireless microphone, AUX input, 1/4 inch microphone jacks


Recommended Uses For Product: For Music Players


Manufacturer: General Sound Co


UPC: 810059431485


Product Dimensions: 17.4 x 20.9 x 31.7 inches


Item Weight: 40 pounds


Item model number: SP-18RBT


Batteries: 1 12V batteries required. (included)


Date First Available: October 31, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Apr 3

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
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Pleasantly surprised!
I was hesitant about ordering a large speaker from a brand I’ve never heard of at such a low price but It’s been great! I bought this to use at work, warehouse type building with constant noise from large fans, AC units, dehumidifiers, etc. I use it everyday and play it loud. I’ve tried several name-brand Bluetooth portable speakers for work and returned them all because they couldn’t cut through the noise. This one cuts through all the noise easily. Good battery life, good bass, clear highs and mids. After unboxing I was slightly disappointed until I realized you need to keep the eq all the way up all the time. I don’t usually push the volume knob past 50%, the sound quality is good at high levels but 50% is already so loud I haven’t needed to push it higher. I recommend this to anyone looking for something for casual every day use ... show more
Reviewed in the United States on September 20, 2024 by Dread Pirate Benny

  • Loud and loud bass
To answer anyone's questions.... yes. It's big and portable .......yes. it does have hard loud rumbling bass... sound quality is good. Nice....it's worth the money. Equalizer is always good to have... has another 5 buttons on bottom. Great machine. U won't be. Disappointed. ((((((Update. Led is broken. Doesn't turn back on....... took to repair shop. They said. The Led display board will cost near of what the product cost. Geeez ... show more
Reviewed in the United States on June 2, 2024 by Amazon Customer

  • Good speaker
Very loud. I work in a factory and is plenty loud enough. Like the equalizer on the front. Long battery life if you don't use the lights. With the lights only couple hours of battery life. Only thing I don't like is the small wheels. The speaker is too wide for the tiny wheels it comes with making it hard to move around. But it's heavy so I don't move it much. 4 stars. ... show more
Reviewed in the United States on April 17, 2024 by Cameron

  • Good job
This speaker is awesome. We love it and the karaoke wireless mic is so cool. Hooked up easy to phone and pumps the sound perfectly. We had a party in a barn and this thing was everything we needed. Great Playlist on my Amazon music account and streamed without any issues all night long
Reviewed in the United States on October 28, 2024 by Adriana Gonzalez

  • Cheap
The bass is not deep or low. Idk what these reviewers are talking about. I sent one back and got a replacement. Same thing. Not great. Loud? Yes. Bass? Definitely not what they’re saying it will do. Also there’s a constant interference noise that can only be drowned out…
Reviewed in the United States on November 14, 2024 by moses a garay

  • Okay speaker, would probably buy a different one if given the option again
I like the speaker, the only problem i have is when you turn it on there's a constant whistling sound. If you have the sound up with a song going you can't hear it much but between songs and when songs have quiet parts you hear it clearly.
Reviewed in the United States on May 27, 2025 by Ben

  • This could've been a great product...
When i first purchased this speaker I was very excited. Unfortunately, i had some issues. The packaging is not strong enough to accommodate the weight of the speaker so there was damage there. When I opened the box, i noticed dents on the face of the speaker frame and that the LED lights do not work. The sound was great and the system was very user friendly so that inspired me return this speaker and hopefully receive a complete functioning speaker in return. That was not the case. A few weeks later,they repackaged the SAME speaker I had the first time and sent it back to me. Same issues and all. I've just returned it yet again. A very disappointing experience . ... show more
Reviewed in the United States on August 16, 2024 by Sam

  • Great, quality speaker
Loud! Quality Sound, travels well. Great speaker!
Reviewed in the United States on May 4, 2025 by Amy J. Wheelock

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