Bluetooth + FM radio-Headset Sunglasses Mp3 Player-4GB memory Sunglasses with mp3 player, supports MP3, WMV, WMA, ASF, WAV music formats.It shields UV, glare and diffused light, allowing you to enjoy music in the sun without disturbance, protect your eyes and eyesight Bluetooth function( receiving the calling and Dial telephone no.l) FM radio function HIFI stereo earphones,bring you endless joy of high-quality music battery support maximum continuous 3~6 hours playback