1. Input: DC5V / 2.0Aб 9V / 2.0A max. 2. Output 1: 5W / 7.5W / 10W (mobile phone). Output 2: 2W (iWatch). 3. Compatibility: compatible with 99% of wireless charging smart phones, iWatch 1 to 4. 4. Material: ABS + PC. 5. Size: 200*92*10mm, weight: 125g. 6. Multiple circuit protection, using QI protocol standard.