1. High fidelity special sound quality. 2. Listen to songs and play games whenever and wherever enjoy the sound. 3. The standby time is much longer 120 hours. 4. The sleek earplugs are designed to wear no pressure. 5. 10m signal transmission. 6. Smart compatible with Bluetooth devices on the market, computer / tablet / phones. 7. Earphone battery capacity: 3.7V, 60mAh. 8. Call time: 2-3 hours. 9. Earphone charging time: 40-60 minutes.
