LEMONBEST Stereo Bluetooth Sunglasses (Polarized Lenses) Sun Glasses Handfree Headset headphone Mp3 player for iPhone Samsung HTC Mobile Phone Bluetooth devices [MULTI-PURPOSE]-- Support both headset and hands-free profiles, calling voice and Reporting phone number function when calls coming. [FULL PROTECTION]-- Perfect combination of durable and fashion lenses, offers anti-glare and ultraviolet protection. [COMFORTABLE & SECURE]-- Extremely comfortable and secure for bicyclist, runners, Hiker etc.Enjoy music in the sun without disturbance and protect your eyes and eyesight. [AUTO SWITCH]-- Auto switch to phone talking mode when making and receiving calls, you can listen music in your cellphone,With Previous/Next Song control, Volume Up/Down control. [PREMIUM MATERIAL]Made of polarized lenses, it has the function of anti-rays, no glare and good eye health care. Hi-Fi earphones built directly on to the frame, and can be adjusted 270 degree for comfortable fit.