Forestfish Black Wireless Bluetooth Headset Sunglasses Stereo Headset Music Player Sunglasses UV400 for Smart Phones or Bluetooth Function The Bluetooth sunglasses perfectly combine polarized sunglasses with Bluetooth headphone. It supports answering phone & MP3 player& call back the last call. Perfect for driving and outdoor activities, such as cycling/ fishing/ traveling/ climbing/ golf. Touch and slide the buttons on the handle to control volume and song playing; Press the power button for one time to answer phone and two times to call back the last call. Up to 8 hours music play time (fully charged), 128 hours standby time, brings you stereo sound, makes you enjoy shock feeling. Polarized lenses, provide UV400 protection to reduce glare; Super strong frame is made of Swiss Grilamid TR90, super lightweight, flexible and durable. Compatible with Android IOS cellphones, iPad, tablet, such us Galaxy S5/S4/ S3/ Note 4/3, LG G2/3, HTC one, One max (M7/M8); Apple iPhone(iPhone 6(4.7)/6Plus (5.5)/ 5s/ 5c/4s/4), etc.