Shenzhen Gremy Technology Co.,Ltd

V3.0+EDR Bluetooth version, available for most of devices with Bluetooth function
Knitted material ,fashion and keep warm with answer the phone in winter.
Set-in MIC, available for cell phone to transmit the speaking phone to your audio devices directly so that the user can hand free answering phone up via the device.
Set-in Li-ion chargeable battery, charge via USB Cable, long stand-by time.
Support display receiver battery on for  iPhone.

Specification:
Bluetooth: V3.0+EDR
Frequency: 2.4026GHz-2.480GHz
Transmission distance: 10M or so
Transmission distance of MIC: ≤1 M
Li-ion Battery: 3.7V/100mA
Charging time: 2.0 hours
Standby time: Up to 60 hours
Continuous working time: about 3.5 hours

Package:
1pcs mucis scarf
1pcs usb cable
1pcs manual