Bluetooth wireless speaker. Ideal for use indoors or outdoors. Water proof, dirt proof, drop proof, and it floats. Unique design features speakers on both sides of the unit for 360-degree sound. Streams Bluetooth audio up to 100-feet away, or connects directly to the charging USB (universal serial bus) for up to 20 hours of playback on a single charge. Includes 1.65-inch drivers, AUX jack, and charging USB connection. Compatible with Kicker Connect app that can control five-band equalizer, volume control, display battery status, and more right from a smart phone.