Sony Extra Bass Earbud Headset Powerful sound Specially designed drivers with high‎-energy neodymium magnets deliver deep‎,‎ powerful bass that perfectly complements today‎'‎s popular music genres‎.‎ A tightly sealed acoustic design allows for a high level of sound isolation which aides in the reproduction of powerful and extended bass response‎.‎ Smartphone playback control The integrated microphone and multifunction control button make the MDR‎-XB50AP the perfect companion for your smartphone‎.‎ Android users can also enjoy the convenient Smart Key app for added control functionality directly from your smartphone‎.‎ Comfortable fit‎,‎ convenient case & tangle free cable Hybrid silicone ear‎-buds provide long lasting comfort and designed to reduce ambient noise‎;‎ x‎-small‎,‎ small‎,‎ medium and large ear‎-buds are included to fine tune your fitment‎.‎

• Sensitivity ‎(‎db‎)‎‎:‎ 110 dB/mW
• Frequency Response‎:‎ 4 ‎- 24‎,‎000 Hz
• Microphone‎:‎ Elecret condenser / Omni Directional
• Remote Control‎:‎ Multi‎-function button / SmartKey app
• Plug‎:‎ Gold‎-plated four‎-conductor L‎-type stereo mini plug