Input voltage DC5V 2A Output voltage DV5V 1A Charging efficiency 73% Transmission distance 6mm Standard QI wireless charging standard Working frequency 100-150KHZ Full set weight 78g N.W:28g Product size 90*90*8mm Color: white, black, color print pattern USB2.0 HUB function Support extended USB2.0 2 ports USB2.0 interface Support BC1.2 fast filling protocol Support and computer data transmission