Features: 1. Fashionable Bluetooth sunglasses: Bluetooth sunglasses are suitable for driving, biking, and hiking. 2. Perfect combination of durable and fashionable Polarized lenses, offers anti-glare and Sun protection. 3. The Bluetooth headset is available for devices with Bluetooth function, such as smartphones/tablets. You can answer phone calls and listen to music with Bluetooth connected to your smartphone and other Bluetooth-enabled devices. 4. Extremely comfortable and secure for bicyclists, runners, Hikers, etc. Enjoy music in the sun without disturbance and protect your eyes and eyesight. 5. The audio sunglasses are suitable for outdoor activities such as fishing, driving, skiing, sailing, hunting, sunlight baths, and protecting eyes from hurt by the strong sun. Specifications: Name: Bluetooth-compatible Glasses Frequency: 2.4-2.480 GHz Bluetooth Version: Bluetooth 5.0 Earphone Type: In-ear Microphone: Yes Noise Reduction: Active Waterproof: Yes Playback Control: Yes Battery: 200 mAh battery Talk time: 6 hours Standby time: 100 days Wireless connection range: 10 meters Packing list: 1 x Bluetooth-compatible glasses 1 x USB charging cable