Product Features: 1. Pure sound with excellent balance. Rich tones and great bass range. 2. Attractive design with lovely cartoon image. 3. The internal conductor is made of superfine high- purity oxygen free copper to provide good sound quality. 4. The wire covered with high elasticity and halogen free TPE material to prolong its service life. 5. Parameter: Rated power is 5mW. maximum power is 20mW. Frequency response is 20-20KHZ. 6. Suitable temperature range : -20c-50c. Material: Silicon, ABS Storage: keep away from fire and moiisture . Suitable temperature range -20c-50c. How to use: Answering button: press one to answer an incomming call. At the end of the call, press once to hang up. When listening to misic, press once to pauce, press twice for the next song and press three times to go back to the previous song. Caution: 1. Please do not use it for a long time to avoid hearing impairment. 2. Do not use it while driving.