MHB Set-in Li-ion chargrable battery, cahrge via USB cable, long stand-by time magic hands-free music beanie

Production Description

1) V4.2+EDR Bluetooth version, available for most of devices with Bluetooth function.
2) Knitted material, fashioon and keep warm with answer the phone in winter.
3) The hat can be washed.
4) Set-in MIC, available for cell phone to transmit the speaking phone to your audio services directly so that the suser can hand free answering phone via the device.
5) Set-in Li-ion chargrable battery, cahrge via USB cable, long stand-by time.
6) Support display battery on iPhone.
7) Support reporting battery life.
8) Support 1-driven-2 mode.