Badasheng HS-550 In Ear Headphones,Earbuds, Earphones with microphone, Stereo Audio Sound With Heavy Bass For Android Smart Phones, Iphones/ Tablets/ Laptop PCs/ Mac/ MP4/ PSP Music play / pause , answering call button is convenient to you , you can answer incoming call by light press the button during music playing when you receive a phone call , music will automatically play again after you end the phone call Inner Ear design with comfortable rubber ear tips, good noise cancelling, don't fall out when running During music play , double press button for next song , triple press button for previous song Enhanced bass speakers provide high quality stereo sound It works for Smart phones / tablets / PC / PSP / MP4