Bluetooth V3.0 version, available for most devices with Bluetooth function
Soft knit material, keep warm in winter
Set-in MIC, can answer your calls handsfree
Can connected with 2 devices at the same time
Best accessory for running exercise
Build-in 300mAh Li-ion chargeable battery, charge via USB cable
Specification:
Bluetooth version: V3.0
Working distance: up to 10 meters
Frequency range: 2.40GHz-2.48GHz
Signal to noise ratio: 98Db
Charging time: about 4 hours
Working time: about 15 hours