A13 Smart Audio Sunglasses Bluetooth Earphone, Dark Gray, Brown, Dark Green

1. Transmission range: 10 meters
2. Function: battery display, call function, voice control, multi-point connection
3. Bluetooth protocol: 5.0
4. Channel: bilateral stereo
5. How to use: head-mounted
6. Frequency: 2. 402-2.480GHz
7. Talk time: 4-5 hours
8. Charging time: 2-3 hours
9. Music duration: 3-5 hours
10. Battery capacity: 140mAh
11. Power: 2x1W
12. Size: 155x152x50mm (expanded)
13. Features: listening to music, answering calls, smart voice, high-speed Bluetooth, polarized lenses
14. Material: Frame: Nylon, Lens: UV
15. Packing list: glasses, charging cable, glasses bag, glasses cloth, storage bag, manual