Note: When purchasing this Bluetooth headset, please read the following instructions: Due to long-term transportation, the power of Tws will be exhausted. You will not be able to use the headset when more→you receive the package. It may be powered off. The first thing to do is to charge the headset box. Very important. Thank you! Features: 1. Listening to songs and calls, supporting listening to songs, and making calls. 2. Each time the Bluetooth headset is connected to the phone, the Bluetooth headset will automatically connect back to the phone when it is turned on, which is convenient and faster. 3. Intelligent compatibility: Support all mobile phones with Bluetooth function, tablets,