Ronkoen Handsfree Wireless Bluetooth Sports Stereo Earphones for iPhone 6 Plus/iPhone 5s/Samsung Galaxy Note 4/Sumsung Galaxy S5/LG G3/Sony/HTC Series(Black) The head of the earphone can be pulled out and transferred from double earphones to single earphone freely In ear style, very convenient when driving and doing sports Allows you to answer the call and listen to stereo music anytime and anywhere Function :Microphone, Bluetooth, Answering phone Bluetooth model :Hands free, Headset