1. Input voltage/current: 5V-2A 9V/2A 12V-2A2. Output voltage: 15W/10W/9W/7.5W/5W3. Watch output power: 2 W (Apple 1, 2, 3, 4, 5)4. Headphone output power: 3 W 5. Charging distance: 1-8mm6. Charging efficiency: 75%7. Appearance color: black, white, gray8. Working frequency: 100-205KHZ9. Material: PC+Rubber oil 10. Interface: TYPE-C