This over-ear headphone adopts real ANC active noise cancellation technology with -25dB noise reduction depth, equipped with Bluetooth 5.4 for smooth transmission and dual-device connection. Designed with lightweight frame and soft breathable ear pads, it brings comfy all-day wear experience. Rotary knob controls volume while short clicks manage music and calls. Foldable structure saves storage space, built-in 350mAh battery supports long-hour playback.