Product information :
Transmission range: 10 meters
Function: bone conduction, power display, call function, voice control, support for music, multi-point connection, other
Bluetooth protocol: 5.1
Channel: Stereo
How to use: Neck hanging
Whether it is single or binaural: bilateral stereo
Color: Q33 Pro black digital display (memory card can be inserted),Q33 black infinite display (memory card can be inserted),Q33 white infinite display (memory card can be inserted),Q36 (numerous graphics can not be inserted),Q88 (numerous graphics can be inserted) Card),8GB-CLASS10 high-speed version memory card, 16G-CLASS10 high-speed version memory card, 32GB-CLASS10 high-speed version memory card

Packing list:
Headphone*1+Memory card*1