High-resolution music: YMOO Y7 Noise Cancelling Headphones has a 40mm dynamic speaker, high-end bio-diaphragm, and master tuning. In terms of sound performance, the bass is powerful, the mid-frequency is soft, and the treble is beautiful. The highly flexible silk diaphragm reproduces powerful lows and clear highs up to 40kHz. Therefore, when you turn on the ANC noise reduction mode, it can detect and cancel a wide range of low-frequency and mid-frequency noises, such as the noise of cars and aircraft engines. Note: ANC is not supported in wired mode Bluetooth 5.2 wireless headset: YMOO Y7 wireless headset uses the most advanced Bluetooth 5.2 technology, which can provide a stable connection up to 50Ft. You put your mobile phone on the first floor and go up to the second floor with headphones on, it can still provide stable and clear sound without the sound of current. 75 Hours Playtime: YMOO Y7 Over Ear Headphones has a built-in 600mAh battery, which can play music for up to 50 hours in noise canceling mode. Standard mode extends playtime to 75 hours. Charging once, you don't need to worry about power problems for a week. Wired and Wireless Headphones: It is not only a wireless Bluetooth headset, but also can be used as a wired Studio Monitor headset through our included 3.5m to type-c audio cable. It is very convenient to use as a computer headset at home or on a business trip. Pressure-Free Comfort: It comes with ultra-soft protein leather earcups and memory foam padding, which is pain-free and clip-free for long-term wear. It has a telescopic rod adjustment and a foldable design, when folded, it is only the size of a palm, very convenient to carry.