New Polarized Bluetooth Sunglasses Conduction Headset Smart Glasses Wireless Sport Stereo Audio Headphone Sunglasses Features: The smart glasses has built-in microphone enables you to hands-free calls with Cl-arity. Made of polarized lenses, the smart sunglasses has the characteristics of anti-glare, anti-UV, anti-fogging, take of your eyes. You can use BO-NE conduction headphones smart sunglasses when for running, driving, cycling, hiking, hunting, fishing, traveling and living, etc. BO-NE-conduction-transducer uses vibration for sound wave transmission to your skull.The technology Let you hear surrounding sound while listening to music,answering phone call,therefore much safer than traditional earphones,headphones or earpieces that completely block out the sound around you. Specifications: Frame material: PC Standby: 150 hours level: IP7 Frequency: 20Hz-20KHZ Earphone power: 32/0.5W Bluetooth distance: 10 meters Bluetooth version: V5.0+EDR Playing music: about 3-4 hours Storage temperature: -20C-80C Continuous talk time: about 4-5 hours Maximum input voltage: 5V / DC500mA Lithium battery: built-in 200mA polymer lithium battery Lens material: resin, polarizer, UV400 Package included: 1X Bluetooth Sunglasses 1X charging cable 1X spectacle cloth 1X glasses bag 1X storage box 1X instructions