Active Noise Cancellation ANC: Advanced ANC technology significantly reduce unwanted noise such as cabin noise, traffic noise and office noise, regardless of whether you travel, walk or work. So you can focus on what you want to hear, every word, note, and tune with incredible clarity. Premium Sound Quality: The Custom 45mm Large Aperture Drivers deliver crystal clear audio with more details, deep and precise bass to restore original sound. The E7 anc headphones Bluetooth headphones feature ANC function smoothly in both wired and wireless modes, reduce noise, make your overall listening experience just that much better. Premium Built-in Microphones and Advanced Bluetooth 5.0: E7 Active Noise Cancelling headphones provide crystal clear and stable hands-free calls. The built-in microphone feature isolates sound ensures that you are heard clearly and communication is smooth during calls. Bluetooth 5.0 achieves fast and stable transmission without signal loss or music dropouts within the range of 15 meters. Pressure-Free Comfort: E7 over ear headphones wireless are designed for ultimate comfort and relaxation. Professional protein ear pads provide a comfortable, skin-like feel and extra durability. The durable 90 degree rotating earcups, makes it easy to adjust the headphone to your preferred fit for all-day comfort. 30 Hours Playtime, Lasting Duration: A full charge for 30 hours of continuous music playback time. You will not have to worry about your wireless headphone powering off or not having enough power for a long trip. Conveniently charge the wireless headphones over ear with the included Type-C cable connected to PCs or laptops.