ACTIVE NOISE CANCELLING HEADPHONES - Active noise cancelling technology removes distracting surrounding noises for a calming, private listening experience just for you. Reduce noise by 85%, turn down ambient noise to whisper with a flick of a switch. Great for reducing the noise of city traffic, drone of a plane cabin or hubbub in a busy office. BLUETOOTH 4.1 STEREO HEADPHONES - Adopted advanced Bluetooth 4.1 Latest technology. Bass is rich and pronounced. The mid and high ranges are also clear and balanced. Even you turn to the high volume, the distortion is minimal. Delivers deep, immersive sound at any volume, making them the best Bluetooth wireless headphones available. FOLDABLE AND COMFORTABLE - Over-ear comfort for your head and ears. Generous memory ear pads and soft touch leather. Fully adjustable headband with 115 degree rotating earcups. Comes with a free zipper case, so you can keep them well-protected in your backpack or suitcase.