Play it Loud: Offers strong stereo sound that is large enough to enjoy a party even outside. BassUp Technology: Add a powerful bass boost to your songs with a single button press. Light It Up: LEDs dance and blink to produce a fun atmosphere and a beat-driven light show. Completely Waterproof: Select Pro can withstand being soaked thanks to its IPX-7 protection. Watch it float without missing a beat when you toss it into the pool. Play it Long: Select Pro's 16-hour playback duration on a single charge ensures that the party lasts through the night and into the following morning.