Headphone Smart Glass Headset Sport

Type: Glasses Bluetooth Earphone Lens Material: Pol-aroid Lens Bluetooth Version: Bluetooth V4.1 Operating Frequency 2.4GHZ-2.480MHZ Wireless Connection Range: 10 Meters Transmit Power: Glass2 Earphone Battery: Built-in 150mAh Lithium Battery Earphone Talk time: 6 Hours Standby Time: 150 Hours Frame Width: 145mm/5.71" (Approx.) Nose Bridge Width: 20mm/0.79" (Approx.) Lens Width: 60mm/2.36" (Approx.) Lens Height: 35mm/1.38" (Approx.)