Features:

Portable Active Noise-cancelling Main Functions : Bluetooth Microphone Answering Phone Noise Cancelling Application: Sport Working Compatible with: Mobile phone Connectivity: Wireless Music Time: 4 h playback with a charge 20h playback with charging case Bluetooth: Yes Bluetooth chip: HUAWEI Kirin A1 Battery Type: Built-in Battery Capacity(mAh): 30mAh per earbud 410 mAh charging case Product weight: 0.0480 kg Package weight:0.1600 kg Package Contents: 1 x Pair of Earphones 1 x Charging Dock 1 x English Manual 1 x Charging Cable|