ULTIMATE EARS Boom 3 Portable Bluetooth Wireless Speaker (Waterproof) - Night Black (Renewed) Long Sleeve This amplifier comes with a

This amplifier comes with a remote subwoofer level control (bass knob) allowing the user to have full control over their bass from anywhere on the watercraft

The back luggage strap of the backpack is easy to transport

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which analyzes your music in realtime to deliver maximum acoustic performance with less distortion

ULTIMATE EARS Boom 3 Portable Bluetooth Wireless Speaker (Waterproof) - Night Black (Renewed) Long Sleeve This amplifier comes with aBrand Ultimate Ears Speaker Maximum Output Power 10 Watts Connectivity Technology Bluetooth, wireless Audio Output Mode Stereo Mounting Type Freestanding About this item Ultimate Sound: BOOM 3 delivers loud and immersive 360 degree sound with deep and accurate bass, all carefully balanced so you can hear every note Powered for Adventure: Rechargeable battery stays powered and pumping tunes for 15 hours. Add the POWER UP charging dock (sold separately)