Smart Stereo Wireless Bluetooth 5.0 Glasses Earphone Polarized Driving Glasses Headset(Black)

1. Function: HD stereo, Bluetooth audio call, voice control2. Bluetooth protocol: 5.03. Bluetooth protocol: HFP, HSP, A2DP, AVRCP4. Transmission distance: 10 meters without obstacles5. Whether it is single or double ears: bilateral stereo6. Input voltage: 5V7. Battery capacity: 75mAh lithium battery8. Battery life: play music for 5 hours, talk for 4 hours9. Standby time: 5 days10. Charging time: 2 hours11. Waterproof performance: IPX512. Charging interface: Micro USB13. Multi-dimensional optimization, fairy tale audio is smoother14. Optics resist blue light, protect the health of eyes at all times, provide comfortable and clear vision