Functions: power display, call function, NFC function, voice control, music support, multi-point connection
Channel: Stereo
How to use: Earplug
Whether single or binaural: bilateral stereo
Color: cool black English version, fantasy white English version, cool black Chinese version, fantasy white Chinese version

Bluetooth version ：5.0
Earphone capacity ：45mAh
Battery capacity ：450mAh
transmission distance ：15m
Wireless frequency： 2.4GHZ

Charging voltage DC： 5V

Support protocol: A2DP1.3/HFP1.6/HSP1.2/AVRCP1.6/D11.3