Charge Qi Enabled Devices Wirelessly By Placing Compatible Device On Top Of Charging Pad . Wireless Speaker Featuring High Definition Bluetooth 4.2 Technology . Simply Pair With Your Device To Enjoy Dynamic Stereo Sound . 300 mAh Lithium Polymer Battery . Features A Micro USB Input (Cord Included) . Output 5 Volts/900 mA . Up To 2 Hours Of Play Time . Wrist Strap . Non-Slip Bottom . Complies with Prop 65. 4 1/4" W x 2" H x 2 1/4" D