Material: TPE Storage: Store it in a dry place at room temperature.
How to use: 1. When there is an incoming call, press the function button to answer the call and press it again to hang up. When listening to music, press the button to play/pause. Press twice for the next tract, press three times for previous track. 2. Push toward "+" to volume up,, push towards "-" to volume down.
Caution: 1. You need to match the product DC plug with relevant audiovisual and mobile devices etc. 2. Do not drag thecable. 3. Wear the earphones properly and do not reverse the L and R side. 4. Do not wear it for a long time at high volume