Power bank Charging: 1.The Powerbank offers one USB plug and a wireless charging areo for charging. 2.When tho phone is being charged, blue LED wil light up. Wireless Charging: 1. Place your phone on the wiroless charging garea. Make sure that the phone is well posifioned (place in center for best use) at the charging area 2.Press the power button 3.When tho phone ia being charged, blue LED willight up The blue LED will flash when charging the wireless power bank and the LED will turn off when the device is fully charged. The blue LED will flash and fade when the battery is running low during use. Input:5V/1-2A Wireless Output:5V/1A USB Output:5V/2A Charging Efficiency: 8mm Charging Efficiency: 73%