- Hat w/ Bluetooth function, listen music in winter it warms you up.
- Hands-free, while playing music with the mobile phone, if call coming in, it convert to hands free phone talk version. Just to click the button to talk hands freely.
- To listen music wirelessly with digital player that has Bluetooth
- W/ voice control button and able to choose the song pre/next
- Material: acrylic fiber
- Bluetooth Version: 2.1 + EDR
- Power Supply: Built-in rechargeable Lithium battery; charge battery via USB cable