BIRUGEAR Hot Pink 3.5mm Metal Stereo Headset Handsfree Soft Gel Earbud with Microphone for Sony Walkman 4GB 8GB Video MP3 Player S736 S738, Walkman 8GB Video MP3 Player S638, Walkman 4GB 8GB Video MP3 Player E436 E438, Walkman 1GB 2GB MP3 Player B133 B135 Brand new Hot Pink 3.5mm Metal Stereo Headset Handsfree Soft Gel Earbud with Microphone Headphone jack: 3.5mm. Built-in microphone for handsfree conversations Cord mounted ON/OFF button which lets you take calls and hang up easily Enjoy music with superb sound quality stereo headset Now you can enjoy your music anywhere you go. Simply, plug it into your MP3 Player and secure the headset comfortably in place. Our new, designed headset is created with a special style to suit your taste and usage