Even though itâ€™s a little less than a pound in weight, this device is built with a 10-watt subwoofer and doesnâ€™t skimp on the bass. Make sure your speakers are charged using a USB cable, and when youâ€™re ready to go swimming simply unplug, connect to Bluetooth, and set afloat in your pool. Select from five color modes of LED lights to create a party atmosphere. You donâ€™t want to immerse the device totally, though it is IPX7 rated, which means it is waterproof up to 30 minutes when submerged in up to a meter of water. For full clarity of sound, consider purchasing the companyâ€™s floating ring to keep all parts above water.