... battery charger 1,Portable,mini size. 2,Rechargeable polymer battery. 3,Led lighting. potable mobile power bank with usb battery charger 1. Product Specifications: Bluetooth Specification:V2.1 ... distance:10 meter Supported Profiles: HSP ,HFP 1.5 ,A2DP and AVRCP Profiles Standby time ... voltage, electric current: DC5.0V 500mAh Battery Capacity:3.7V 2200mAh Taiwan patent: M ... bank with usb battery charger