Charge Qi Enabled Devices Wirelessly By Placing Compatible Device On Top Of Charging Pad. 4,400 mAh Lithium Ion Grade A Non-Recycled Battery. Speaker Featuring High Definition Bluetooth® 5.0 Technology And Built-In Microphone With Volume Control. Simply Pair With Your Device To Enjoy Dynamic Stereo Sound Or Receive Hands-Free Calls. Includes Two 5-Watt Drivers And Passive Radiator For Bass Boost. Up To 15 Hours Of Play Time. LED Indicator Light. Music Control Buttons Include Play, Pause, Skip, Volume Control, Answer Call or Hang-Up. The Bluetooth® word mark and logos are registered trademarks owned by the bluetooth SIG, Inc. and any use of such marks by the supplier is under license. Other trademarks and trade names are those of their respective owners.