1. Input voltage: 5V 2A, 9v 1.67A
2. Transmission power: 5w--7.5W--10W
3. Mobile phone output current: 5V/1A 9V/1.1A
4. Transmission distance: 2mm-10mm
5. Charging efficiency: 73%
6. Appearance color: black
7. Program: independent research and development
8. Working frequency: 100-205KHZ