Specifications:
Receiver(dongle): Nano style
Connect port: With USB2.0 above
RF mode: 2.4Ghz GFSK
Transmission distance: Up to 10 meters
Transmission Power: Less than +4db
Power supply: Rechargeable 450mAh polymer Lithium battery
Charging voltage: 4.4V~5.25V
Charging Current: 300mA
Sleeping Voltage: 3.7V
Operating Current: 22mA
Product weight: 100g
Product Size: 170mm*49mm*16mm