1. Sound channel system: wireless stereo
2. Control mode touch mode
3. Waterproof rating: IPX4
4. Bluetooth program: Jelly AC7003F4
5. Bluetooth version: V5.3
6. Support Bluetooth protocol: HFP, A2DP, AVRCP, HSP, BR+EDR+BLE
7. Bluetooth operating frequency: 2.4GHZ-2.4835GHZ ISM Band
8. Bluetooth effective distance: about 10m
9. Speaker power: 1.2W
10. Headphone amplifier type: ANT8112 Class D amplifier
11. Frequency response: 20-20000Hz
12. Speaker unit: 8 Europe electric 0916 speakers
13. Microphone: electret condenser microphone
14. Built-in battery: lithium-ion polymer battery 3.7V 80mAh
15. Charging current: 60mA
16. Charging port: Type-C/USB-C
17. Charging time: about 2h
18. Use time: about 2.4-3h
19. Standby time: about 6 months
20. Saturation voltage: 4.2V
21. Over discharge protection: 3.3V
22. Weight: about 30g

Features:
1. HD anti-UV lenses, clearer vision, high-definition vision, anti-UV, strong and unbreakable, eliminating glare
2. Lightweight frame, comfortable to wear, long wear without pain
3. One-piece nosepiece design, fit the nose shape, reduce indentation
4. Bluetooth 5.3 stereo sound, stable performance, strong compatibility, stronger function, high-definition call sound quality
5. Dual speakers, directional sound, maintain privacy, accurate sound into the ear
6. Touch connection, multi-functional and convenient operation
7. Hinges adjustable, not pinching face
8. Curved mirror legs, not easy to slip
9. IPX4 level waterproof, easy to deal with various situations
10. Type-C/USB-C charging interface, convenient and quick