G9S Bluetooth casque Cool respiration lumière tactile casque numérique

Specification:
Item model number: G9s
Bluetooth version: V5.1
Headphone type: In-ear
Bluetooth distance: 10m
Surface process: Frosted sub-uv process
Channel system: Stereo
Support protocol: Hfp/a2dp/hsp/avrcp standard voltage: 3.7v


Packing list: 

Earphone*1+usb data cable*1