... max 20 client devices sharing Wi-Fi at the same time 1xMicro USB charge I-Multi 1xStandard USB2.0 modern connecting ... button, 1x power display button Battery Capacity: 1800mAh, working time: 4 hours, Standby time: 10 hoursSpecification: Support switching on/off iPad, iPhone, iTouch ... switch Support 20 client devices sharing WiFi at the same time Support displaying battery power Support most of 3G USB ...