User ManualTable of Contents1. welcome32. OVERVIEW43. how to wear53.1 Height adjustment53.2 foldable hinges64. how to charge74.1 Battery Status75. how to connect85.1 CONNECT to A Bluetooth device85.2 CONNECT to an nfc device95.3 CONNECT to 3.5 MM JACK CONNECTOR105.4 CONNECT TO USB116. how to use126.1 turn headset on/OFF156.2 Multiple call handling156.3 voice guidance167. SUPPORT177.1 faq177.2 How to care for your headset188. Technical specifications19Size: 2.62 MBPages: 19Language: EnglishOpen manual