The Grip Bluetooth speaker connects wirelessly up to 30 feet away and is compatible with most Bluetooth-enabled smartphones, tablets, laptops and desktop computers. It features a solid loop for hanging up wherever you need your tunes, detachable wrist strap, a bass enhancer for deeper sound and is IPX-4 splash-proof. There are also a built-in microphone for taking calls, multi-function control button and charging indicator light, and includes a micro USB charging cable with a 3.5mm speaker cable for connecting with non-Bluetooth devices. Bluetooth version 3.0 and full A2DP support. Output: 2W. FCC ID, MSDS, UN38.3, Prop 65, 7P, IPX4, BQB-EPL certified. Charging time: 2 hours.