Smartphone playback control The integrated microphone and multi-function control button make the MDR-EX110AP the perfect companion for your smartphone. Android™ users can also enjoy the convenient Smart Key app for added control functionality directly from your smartphone. Upgraded sound quality The upgraded 9mm driver units coupled with high-energy neodymium magnets provide increased efficiency and deliver extended treble and mid-range frequency response with powerful bass. Comfortable fit Hybrid silicone earbuds provide long lasting comfort; x-small, small, medium and large earbuds are included to fine tune your fitment. Tangle free cord The included Y-type cord with cord-slider prevents tangles on the go. Fashionable and Colorful Accent your style with a variety of colors in a satin finish.