Features: 2 in 1 Design, it is not only a sunglasses but also a wireless earphones, handsfree makes it great for driving, cycling, hiking, travel or outdoor use. Lens is made of high-definition optical polarized material, which is explosion-proof, anti-ray and effectively protect the eyes. Hydraulic telescopic earphone rod can be freely adjusted in a 270-degree rotation range, which fits different face shapes and is comfortable to wear. Foldable lens, when you do not use polarized lenses, just fold the lens up-wards, without taking off the glasses, which is very convenient. Surround sound headphones, HiFi-level shocking stereo, all-round high-quality music enjoyment, high-definition call effect. Specifications: Material: ABS Size: Approx. 14x17.5cm/5.51x6.89 inch Glasses Lens: about 6x4cm/2.36x1.57 inch Color: Black, White(optional) Function: support music Bluetooth-compatible Protocol: BLE5.0 Channe: dual speaker, stereo How to Use: In ear Charging Time: about 2 hours Working Time: 3-5 hours(medium volume) Battery Capacity: 140mAh Receiving Distance: 10m Power: 2x 1W Charging Voltage & Current: for DC 5V 60mA Max Support Systems: Android & iOS Syatem Suitable Occassions: for Driving, Travel or Outdoor use Note: Please allow 1-2cm errors due to manual measurement, make sure you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Glasses Headset