Reduces most environmental noise: Infurture Noise Cancelling Headphones adopts the latest noise reduction technology, a combination of active noise reduction and passive noise reduction, which can detect and eliminate a wider range of low and intermediate frequency noise, such as car and aircraft engines and Busy office. USB-C Fast Charging Function for 40H Playtime: 10 minutes of charging can provide you with 2 hours of listening time. You can enjoy a noise-free world for up to 40 hours. Note: If you do not use Bluetooth Headphones, please turn off ANC to avoid power consumption. 90° swiveling earcups and Universal Comfort: The memory foam earcups can be gently shaped on your ears, and the swivel joints of the headband will automatically adjust the angle of the earcups to fit your head shape.​​ And the Over Ear headphones only weights 7. 2oz(204g) for long-time wear. High-quality built-in microphone and Bluetooth 5.0: Built-in CVC8.0 microphone can ensure clear calls. You can make hands-free calls, which allows you to easily get rid of the shackles of wires. Note: The microphone can only work in Bluetooth mode. Powerful bass effect: 40mm drivers can bring better bass. Infurture's active noise-cancelling surround ear headphones bring you crisp, powerful sound and quiet sound, which will help you enjoy music better. Extraordinarily silent listening to fully balanced bass and high-fidelity tones, with extraordinary clarity.