Wireless version: V5.3 Working range: barrier-free 10 meters Wireless frequency: 2.402-2.480GHz Charge and discharge cycle: >300 times Charging box capacity: 300mAh Charging voltage: DC5V-1A Charging time: 2

Wireless version: V5.3 Working range: barrier-free 10 meters Wireless frequency: 2.402-2.480GHz Charge and discharge cycle: >300 times Charging box capacity: 250mAh Charging voltage: DC5V-1A Charging time: 2