1. Materials: ABS+PC
2. Wireless Version: V5.4
3. Frequency Range: 20Hz-20KHz
4. Driver Element/Rated Power: 13mm/5mW
5. Input: DC5V-300mA
6. Battery Capacity: 300mAh+40mAh x 2
7. Averrage battery life: about 5H
8. Time For Charging: 1.5H
9. Ergonomic design ensures a comfortable and snug fit for all-day wear
10. Crystal-clear voice calls, as if speaking face to face
11. LED display shows real-time battery level for easy monitoring
12. Clip-on wireless earbuds to fully unleash your passion for sports