FAQ———————–At the end of the detail descriptionModel———————Lenovo HD200Function——————music supportEarphone material——plasticBattery——————-500mAhcollapsible—————yes,CancellingSound channel———–2Bluetooth version——-5.0Color classification—– Black / Red [intelligent noise reduction]Package type————Official StandardHeadset category——- true wireless headsetUsage——————–headwearTransmission radius—-10M Package includes:1*HD2001*USB Charging cable1*3.5MM Audio Line1*Instructions1*Box