Out of the black lens Specification: Type: glasses bluetooth headset Shell material: high quality ABS Bluetooth version: Bluetooth V4.1 Working frequency 2.4GHZ-2.480MHZ Wireless connection range: 10 meters Transmit power: Glass2 Battery capacity: 180mAh Headphone talk time: 6 hours Standby time: 150 hours Color: black/blue/yellow/tan (optional)     The package includes: 1*Glasses headset 1*Cleaning cloth 1*Storage …
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