KQLHLHDYZ Bluetooth Headphones Over Ear, Wireless Active Noise Cancelling Headphones, Portable Foldable Headset with Built-in HiFi Stereo Sound Reduction Mic for Work, Gym, Travel, Game（Black）

Active Noise Cancelling Technology: The active noise cancelling feature works like a charm. ANC technology with a noise reduction depth of up to -20 ± dB. Can effectively reduce external environmental noise by 95%. Blocking out background noise whether you are at the gym, working, or commuting Perfect Sound Quality: The 40mm drivers deliver deep, powerful bass at any volume. The sound quality is rich and immersive, with deep bass and clear highs that make music, podcasts, and calls sound amazing.The Bluetooth headphones with 2 noise-canceling microphones, help you traveling or just chilling Endless Playtime, Rapid Revive: Bluetooth headphones have a built-in 300mAh Li-Polymer battery that can play for up to 15h.Or use the 3.5mm audio cable to help you switch to wired mode for uninterrupted listening. Charges quickly and lasts a long time. You can go days without charging, and that’s incredibly convenient Bluetooth 5.4 Technology: The headphones quipped with state-of-the-art Bluetooth 5.4 technology. Durable and high quality. The controls are convenient, the sound quality is good, the headphones connect to bluetooth flawlessly, and the feedback lets you know they're on and connected Very Comfortable & Easy to Use: The button design is simple (only 3 buttons) and easy to remember, it reconnects to the last used device automatically so it's nice to turn them on and get going quickly. They are well padded and adjustable, fit great. The headphones also very lightweight and foldable, you can easily carry them in your backpack