Bluetooth Winter Earmuffs

Overview
Bluetooth Headset Smartphone Ear Protection Earmuffs for HTC
Cotton blend material, stylish, warm in the winter to answer the phone.
Set the MIC for your phone to talk directly to your audio device so that you can answer your speakerphone from your device.
Built-in lithium-ion rechargeable battery, charging through the USB cable, long standby time.

Specification
Product Specifications:
Bluetooth version: V3.0 + EDR
Frequency: 2.4026GHz-2.480GHz
Transmission distance: 30 feet or less
MICROPHONE transmission distance: ≤ 2m
Lithium-ion battery: 3.7V / 120mA
Charging time: 2.5 hours
Standby time: 60 hours
Continuous working time: about 4 hours

Package Content
1* Bluetooth Earmuffs