1. Chip: QCC3020 2. Standby time: 400Hrs 3. Charging time: 2Hrs 4. Listening time: 30Hrs (70 volume) 5. Talk time: 30Hrs (70 volume) 6. Battery: 400mAh 7. Hands-free calling ensures safe driving, the one-way microphone brings you clear calls without noise interference 8. Connect 2 Bluetooth devices at the same time, fast pairing, transmission distance 30Ft 9. Ultra-large capacity battery, ultra-low energy consumption, can achieve ultra-strong battery life and can be used for a whole day after charging for two hours. 10. Product size: 59.68x150.03x188.72mm 11. Product weight: 141 grams