Emzwin 5B3C Audio bluetooth sunglasses with open ear headphones for men women smart cycling glasses UV400, 3-Color Lens - BJ

• Bluetooth Audio Sunglasses with built-in speakers----High quality clear calls, listen to music and voice navigation, adjust the volume and switch to the next song Long battery life 6~ 8 hours of uninterrupted playback at full charge, 2 hours of full charge via USB port, reliable Bluetooth range of up to 30 feet Use TR-90 material frame, eye protection, sweat and sand protection design, comfortable and safe to wear, very suitable for riding, driving, fishing, mountaineering, etc Waterproof class IPX4, splash and sweat resistant.The audio Bluetooth glasses use UV400 lenses, which can prevent 99.9% of ultraviolet rays,The open headphone audio design allows you to enjoy music while perceiving the environment at the same time The Bluetooth connection method of the Bluetooth sunglasses and mobile phone is as follows: 1.After the glasses are turned off, press and hold the power button "-" for 5 seconds (for 5 seconds, do not let go) until the red and green light flash alternately and the glasses enter Bluetooth connection mode. 2.Turn on the Bluetooth of the mobile phone, find Vision 5B in the drop-down list and click to select Vision 5B