Transmission range; 10 metersFunction; waterproof, battery display, voice control, call function, music support, multi-point connectionBluetooth protocol; 4.1 channelStereo use; neck-mountedWhether single or both ears; bilateral stereo
Secure payment
Secure Privacy
Refund in case of loss of the parcel
Refund for non-delivery
Refund if the item is damaged
