Double Bluetooth Headset Binaural Hanging Neck Sports Running $ 10.37 Product information: Function: battery display, call function, support for music, multi-point connection, can be connected to stereo earphones Bluetooth: Protocol 5.0 Channel: stereo Usage: neck hanging type Single or dual ear: bilateral stereo Color: luxury black, luxury black + headphone cable Size: 11.5x20.5cm Packing list: Data line X1, three pairs of caps, manual X1, packing box X1