Nulton&reg; Wireless Cell Phone Headsets , Cell Phone Headsets ,bluetooth headset music and call,Voice control ,The smallest, invisible, wireless, mini, for Samsung ,iphone,Apple 6plus,moto,sony,MP3,PSP and all the phone could use. (black) 1.This is a very small bluetooth headset, mobile phone has bluetooth function can be general, make us office, and use the class 2.Support music phone, voice control answer, you say "YES" when someone call you, 3.Small and exquisite, send people is very good 4.About the use of headphones: long in front of that sign, blue lights don't let go, in a couple of seconds, alternating red and blue together to let it go, cell phone bluetooth, you can use the search link, equipment is S530