BW Bluetooth Sunglasses (Polarized Lenses) Handsfree Stereo Music Headset Headphone For CellPhone Mobile Phone Tablet and All Bluetooth Enable Devices Fashionable 2-in-1design with foldable eyeglasses. Earphones built directly on to the frame,and can be adjusted for comfortable fit. It can works for all bluetooth mobile phones , you can enjoy hands-free talk with your friends. Telephone talking mode when calling in and out Bluetooth V1.1/V1.2 compliant. Battery :Rechargeable lithium battery automatically detected battery voltage. 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.