|| 1.Bluetooth 4.1,high fidelity wireless music to enjoy.
2. Special design, wireless connections between the left and right ears.
3.Charging interface: Point- contact
4.Built-in active noise reduction circuit, blocking outside noise nuisance.
5. With power bank function.
6. Multi function , convenient and easy to use.
*Bluetooth version: V4.1+EDR CSR
*Standby time: About 220hours
*Charging time: 2hours
*Play time: About 2hours
*Battery capacity: 40mH
*Charging case capacity: 250mah
*Charging case size: 29*29*70mm
*Charging case weight: 45g