Headphones on. World off.E7 wireless headphones are engineered to sound better, be more comfortable and easier to take with you. Put them on, and suddenly everything changes. Your music is deep, powerful and balanced, and so quiet that every note sounds clearer. Even air travel becomes enjoyable, as engine roar gently fades away. No matter how noisy the world is, its just you and your musicor simply peace and quiet.Key Features- Better by design. E7 Bluetooth Headphones are lightweight with pillow-like softness on the headband and protein ear cushions, while the earcups rotate for a fine-tuned fit.- Music minus noise. Advanced active noise reduction technology quells airplane cabin noise, city traffic or a busy office. So you can focus more on what mattersyour music, movies and videos.- Frequent flyer's delight. Fly once with Bluetooth over-ear headphones, and chances are youll never fly without them again. They reduce airplane roar to a whisper. It is made for a happy quiet fly.- True-to-life sound. Precise guitars. Clear vocals. Clean bass and crisp percussion. Discover sound quality that brings out the best in your music\u2014including subtle details you may never have noticed. by proprietary high quality 45mm large-aperture drivers.- Built-in microphone. The high-quality built-in microphones provide HD calls, the business lass communications even in windy or noisy environments Which is convenient for you to communicate with others.- 30 hours playtime. E7 Bluetooth headphones won't allow your headphones to power off you can enjoy your world without noise for 30 hours' long time. Don't need to worry about the power shortage problem on the long travel.