Kissmart&reg; Bluetooth MP3 Sport Sunglasses Headset Music Glasses Support Hand-free Calling for iPhone iPad Samsung HTC Sony Smartphone Talbet (Stereo Blutooth Version) Fashionable appearance combined with a unique design You can enjoy music very conveniently wherever you are Built-in rechargeable lithium battery, comes with charging cable Auto switch to phone talking mode when making and receiving calls Compatible with the most of smartphones or tablets with Bluetooth function