Bluetooth performance standard: Support Headset and Handsfree profile
Two earphone
Stereo music enjoyable
Transmitter power: Class 2
Wireless frequency: 2.4 GHz-2.480 GHz
Sensitive: < -75 dBm
Transmitter distance: 10M

Power Parameter
Charger power: Input 100-240V AC, OUTPUT 5V DC
Working volt: 3.7V
Battery: Rechargeable Li-Polymer battery
Charging time: 2.5 hours
Talking time: 3 hours
Standby time: 80 hours

Package Information
Product size (mm): 50 x 20 x 20
Packaging: Headset + USB cable + user guide +colour box