ION Audio Plunge | Waterproof Stereo Boombox with Bluetooth, Built-in Microphone & Rechargeable Battery (20W) Rugged, IPX7 waterproof stereo speakerfloats and is fully submersible! Streams music wirelessly from any Bluetooth device; Easily control your Bluetooth music with Play/Pause, Next/Previous Track buttons Built-in rechargeable battery for up to 20 hours! 20 watts peak power w/ two 3.5" drivers & one rear firing passive radiator Built-in microphone for speakerphone functionality  Use built-in microphone to send voice commands to your smartphone's Virtual Assistant