Outdoor Warm Music Bluetooth Headset Hat

 Product information:

Transmission range: 15 meters
Function: battery display, call function, support music
Channel: stereo
How to use: head-mounted
Single or dual ear: bilateral stereo
Color: TR-black, TR-dark gray
Life time: 12 (hours)

Size Information:
Size: 21.5*26CM

Packing list: 

1*headphone cap+1*USB cable