... .0A 4.Smart,Elegant,Portable 5.CE,ROHS mini backup battery USB output can charge usb digital devices. Product ... :3.7V 4,000mAh(14.8Wh) Lithium Polymer Battery Product Compatibility:Perfectly for Iphone,for Ipad,for Blackberry ... ,MP3/4,Mobile,etc. Standby time:Up to 720hours Talk time:up ... on Wi-Fi Audio Play: Up to 620hours Video Play:Up to 17 Hours Packing: gift box ...