Wireless headphones with hybrid active noise reduction and Hi-Res Audio certification. - Noise Cancelling: Hybrid active noise reduction function - Sound Modes: 6 EQ sound modes - Audio Certification: Hi-Res Audio certification - Touch Control: Customizable touch controls - Sound Pressure Level: 88dB Thank you for viewing. Bluetooth 5.3 over-ear headphones, high-resolution audio, foldable, lightweight wireless headphones with microphone, comfortable protein ear pads, 15 hours of playback, ideal for home, office, mobile PC, etc. (Brown) 【Stable Connection with Bluetooth 5.3】Equipped with Bluetooth 5.3 + class 1 (10mW), these headphones achieve industry-leading connectivity, making it less likely to cut out even in crowded places or when there is distance between the device and the headphones, allowing you to immerse yourself in music. You won't be restricted in your movement when using Bluetooth headphones, and you won't feel any hassle, and there is no risk of disconnection, making them convenient not only indoors but also when going out or commuting to school. 【Wired and Wireless Dual Use】You can also connect directly with the included cable for "plug connection," eliminating slight sound interruptions and delays from the headphones, and enjoy the world of music without worrying about battery life. 【Long-lasting use on a single charge】Our headphones have a built-in large-capacity battery, and the adoption of the Bluetooth 5.3 chip achieves lower power consumption compared to conventional products, significantly improving usage time. With a 2.5-hour charge, you can use them continuously for about 35 hours, allowing you to use them all day without worry. 【Multi-function Buttons】The headphones have multi-function buttons, allowing you to easily adjust the volume, answer/reject calls, switch songs, and switch EQ modes. (Built-in microphone, EQ function, and buttons only work in wireless mode) 【Foldable】The foldable design saves space and is extremely practical, and a storage case is also included, making it very convenient for storage and carrying. ※This is an item for sale as an unwanted item, and it is new and unused, so I have not checked the operation. I will handle initial defects, but please contact the manufacturer directly for any subsequent problems.