Sports wireless Bluetooth headset with earplug

Article No.: D4
Transmission range: 10M
Functions: power display, call function, music support
Processing customization: Yes
Bluetooth protocol: 4.1
Channel: stereo
Usage: ear hanging type
Whether one ear or two ears: unilateral handsfree
There are authorized private brands: Yes
Whether cross-border export is dedicated to the source of goods: Yes
Support Customization: support