1. Wireless Headset specification: Wireless V4.2 WT. Support protocol: Headset, Hands-free, A2DP, Avrcp, thus earphone stream clear and continuous music and promise more stable signal, as well balanced sound, clear treble and powerful bass.
2. Charging voltage DC5V. Charging time: 2 hours. Talk time is 4 hours, music time is 4 hours, standby time 170 hours, so you can enjoy music and calls freely anytime and anywhere without the bound of wire.
3. Battery capacity: 70mAh.
4. Also, earphone is compact and lightweight, size is only L54 × W14 × H20mm and weight is only 7g, therefore you can enjoy music freely anytime and anywhere without the bound of wire.
5. The battery level can be displayed on Apple and some Android devices, certainly you will know exactly how much battery is left when paired with your device.