Features:
• Wireless distance: about 10 m
• Frequency range: 20Hz-20kHz
• Amount power: 3mW
• Music time: about 3.5 hours
• Call time: about 4 hours
• Standby time: about 90 hours
• Charging time: about 2 hours
• Battery capacity: 55mAh
• Answer / Hang short 1 times
• According to the 2 short block
• Play / suspend short press 1 times
• The opening length of the machine is 3 seconds and the machine is closed for 5 seconds.
• Switching charge in Chinese and English for 3 seconds