Movssou E7 Active Noise Cancelling Headphones Bluetooth Headphones, Black Advanced Active Noise Cancelling Technology: Reduced noise, better sound. Hear every word, note, and tune with incredible clarity. Whether you are taking a long-haul flight or commuting to work, the ANC function can cancel out a wide range of low and mid frequency noises such as the aviation environment and car engines, so you can focus on what you want to hear. Superior Call Quality: Thanks to the combined built-in microphone with advanced audio signal processing technology. The E7 Active Noise Cancelling headphones deliver a clearer voice quality for all your phone conversations. The additional microphone feature isolates sound while talking on the phone. Conversation flows freely with easy, hands-free calling. Leave your phone where it is, just speaks with a short press. Premium Sound Quality: The 45mm drivers reproduce a full range of frequencies. The Bluetooth headphones will give you a deep, powerful, and immersive sound at any volume, make your overall listening experience just that much better. Our goal has always been committed to providing our customers with better sound quality as the focal point of our engineering. Pressure-Free Comfort: E7 wireless active noise cancelling headphones blend sophisticated style with exceptional comfort. Super-soft, pressure-relieving ear pads distribute pressure and increase ear/pad contact for a stable fit. With a light-weight design, you will barely notice you're wearing over-ear headphones. All-day Power with 30 Hour Playtime: A built-in 750mAh battery will provide you with huge 30-hour battery life. You will not have to worry about your wireless headphone powering off or not having enough power for a long trip.