1. Chip: Blue News

2. Bluetooth version: 5.0

3. Material: ABS + PCABS + Plating + Food Silicone Ear Cap

4. Effective straight line distance: more than 10 meters

5.Speaker: Copper ring 8mm

6. Battery: Headphone 55mah, charging chamber 320AM

7. Play time: 4-5H

8. Standby time: 120H

9. Fully charged time: about 0.5 hours