Professional Active Noise Cancelling (ANC) Technology. Developed using advanced noise canceling technology, the Wireless Headphones effectively blocks out surrounding noises, such as airplane cabin noise, city traffic or a busy office, so you can enjoy listening to music or comfortably watch movies and TV shows .Perfect for using on an airplane, train in the gym or any noisy environment Much Better Sound. Proprietary 40mm large-aperture drivers provide you with deep, accurate bass response. From 75dB to 85dB, the Hetyre HT9 Active Noise Cancelling Over Ear headphones give you crisp, powerful sound and quiet that helps you enjoy your music better. The goal that provides Customers with better sound quality, is our constant pursuit Much Higher-quality Built-in Microphone and NFC Technology. Hetyre HT9 provides high-quality built-in microphones for hands-free calls, Which is convenient for you to free yourself from wires. NFC pairing aided by voice prompts, promises quick and stable connection with your Bluetooth enabled devices, Powerful Bluetooth Function

Get a cinematic sound experience at home with wireless headphones that provide the experience of having seven speakers installed around your living room. Feel thunderous bass and atmospheric echoes with precision. The headphones feature large 40mm drivers and a wide dynamic frequency range so that nothing gets lost..Connectivity Technology: Wireless Battery life: Listen wireless for up to 20 hours (built-in battery life). Get the experience of 7 speakers, in a fraction of the size. Stylish charging dock that looks good on any bookshelf or side table. Digital wireless: Enjoy noiseless high-quality sound from non-compressed 2.4 GHz/rf digital transmission.