V3.0+EDR Bluetooth version, available for most of devices with Bluetooth function.
Elastic knitted material, warm, soft and stylish design.
Bluetooth hat for music and hands-free talk
Built-in Li-ion chargeable battery, charge via USB cable, long stand-by time.
Headphone can be taken off so that you can wash the hat

Bluetooth Speaker Hat Product Features

Model Number
BTS-JM 34
Size
adult, inner head girth 58 cm orcustomized
Materials
jean
Color
Red, black, blue, white, yellow,customized
Certification
CE, ROHS
http://www.wirelessspeakerchina.com