Sony Deep Bass Model with Remote and Black Headphones, MDR-XB550AP Foldable, Microphone, (MDR-XB550AP B)

Bass booster for overwhelming bass Dedicated 30mm EXTRA BASS driver delivers powerful bass Hands-free calling with your smartphone and music control with the remote control Ear pads that combine high wearing comfort and airtightness "SmartKey app" for Xperia™ allows you to customize remote control settings to your liking