Wireless Charging Speaker Features Conveniently charge your Qi-compatible music device without wires by placing it on the built-in Qi inductive charging pad Bluetooth v2.1 with AAC delivers high quality, near lossless wireless audio steraming for superior sound Configured with omnidirectional, room-filling TDK Signature Sound produced by 4 full range left and right speakers and a ported subwoofer Customize your sound experience using built-in treble and base controls Rechargeable battery provides up to 6hours of portable audio Weatherized design protects against spraying water Specifications Inductive charging requires a Qi-compatible device or Qi device case Bluetooth v2.1 with AAC and support for A2DP IPX3 certified weatherized design USB chraging only port (1 amp) 3.5mm stereo auxiliary input AC adapter Tweet Retailers