Significant Noise Cancellation for Travel: H501 active noise cancelling headphones reduce unwanted low-frequency noise effectively like the roar of airplane engine so you can focus more on your music world</br>Comfortable Over Ear Headphones: the adjustable headband along with rotatable earcups and foam-cushioned earspads around ear style not only provide lasting comfort but also block out outside noise perfect for a long time wearing (weight 7.8 ounces)</br>Impressive Sound Quality: precise tuned 40mm Neodymium drivers offer powerful bass balanced sound with excellent full-range audio reproduction</br>Fit Universal Devices: work with iPhone iPad iPod Android smartphone MP3 tablet laptop PC and more audio devices (This headphones is NOT bluetooth enabled. )</br>Convenient Inline Control: enable you to answer and make a call easily with inline microphone (IMPORTANT NOTE: Inline microphone compatibles with both iOS and Android devices. BUT remote control ONLY compatibles with iOS system devices)</br></br>Product Description</br></br><b>H501 Wired Active Noise Cancelling Over-ear Headphones with Inline Microphone and Carrying Case</b> <br> <br><b>Great Companion for Travel</b> <br>? Features the latest active noise cancelling technology?? H501 reduces unwanted low-frequency ambient noise by 92% (up to 22dB). <br>? Wear H501?? immerse yourself in the music world as engine roar gently fades away. <br> <br><b>Longest Battery Life</b> <br>? H501 designed to conserve battery intelligently?? 50 hours battery life ensure LONGEST Play Time.  <br>? A single alkaline AAA battery lasts up to one week (based on 7 hours of ANC-on per day). <br>? Easy to replace the removable battery without waiting for c