Wireless QI charger. The highest quality workmanship ensures long-term, trouble-free use, which other chargers cannot guarantee! Technical Specification Power Supply: 5V 2A Compatible with: QI 1.0/1.1 Charging current: 5V 1A Range: up to 5mm USB power cable approx. 40cm Dimensions: 85x155x8.5 mm quantity per carton: 100 pcs.