1. Bluetooth version: V5.3
2. Transmission range: about 10m
3. Bluetooth chip: AD6983D4
4. Support protocol: HFP, HSP, AVRCP, A2DP
5. Operating voltage: DC 5V
6. Rated power: 3mW
7. Impedance: about 32 ohms
8. Battery capacity: 320mAh for charging compartment, 30mAh for earphone
9. Standby time: about 720H
10. Charging time: about 2H
11. Playback time: about 4-5H
12. Charging port: Type-C
13. Material: ABS+PC
14. Weight: about 47g

Features:
1. Music/game dual mode, free switching
2. HD ENC call noise reduction, clearer calls
3. Bluetooth 5.3, audio and video synchronization, low latency, non-stop connection
4. Intelligent algorithms, three-dimensional sound field, spatial sound effects, immersive
5. Touch sensing technology, fingertip easy operation