Bluetooth handsfree function
Compatible cellular phones w / hands-free, headset, AVRCP bluetooth protocol
Bluetooth V4.1
ISM transmission frequency (2.4 ~ 2.48 GHz)
Transmt Distance 10 m
MIC Effective Distance 1 m
SNR 60 dB
THD <0.1%
Frequency Response 20Hz ~ 15 KHz
Talk time 20 H
Standby time 1000 H
Charging time 3 H
Charge voltage 3.7 V
a Battery capacity: 650 mAh
Micro USB Interface / Port
External card Max.
Other Features: supports game two phones at the same time (max memory 8 Bluetooth phones); built in function of DSP noise suppression and echo elimination; with Hi-Fi speaker and microphone with high sensitivity; transmission power: class 2; with a magnetic iron, can stick clip firmly; With English speaking voice; Built-in lithium battery