Charge Qi Enabled Devices Wirelessly By Placing Compatible Device On Top Of Power Bank . 4000 mAh Lithium Ion Grade A Non-Recycled Battery. Features A Micro USB Input (Cord Included) . Output: 5 Volts/0.7 Amp . Wireless Speaker Featuring High Definition Bluetooth 3.0 Technology . Simply Pair With Your Device To Enjoy Dynamic Stereo Sound . Features High Definition Sound With A Built-In Microphone For Easy Hands-Free Calling . Perfect For Your Home Or Office Activities .