1.Automated charging protection circuit,(Through the USB cable,
power can be directly transmitted to the battery inside.),PVC
meterial ,hight quality
2.Headset with the structure of the ergonomic design and
comfortable to wear.
3.through infrared . transmisstion benefit for human)
4.Carrier Frequency: 2.3/2.8MHZ3.2/3.8MHZ
5.Headset current consumption: less than 25mA.
7.product pass CE,FC,ROHS