Sound: The wireless BT headphones use premium quality audio technology to provide clear and realistic sound, allowing you to enjoy a better music and gaming . Upgraded Chip: The headphones use an integrated chip that combines BT 5.0 and intelligent noise reduction technology, allowing the headphones to quickly connect to your phone, tablet, or computer, making it more convenient for you to enjoy music. The headphones also effectively reduce surrounding noise, allowing you to focus more on music or calls. Comfortable to Wear: The headphones adopt an over-ear design with soft and skin-friendly earmuffs, ensuring comfortable wearing even for extended periods of time. Long Battery Life: The headphones have a built-in high-efficiency 300mAh lithium polymer battery that can last for several hours on a single charge, allowing you to use them for extended periods without the need for frequent charging. Item Name: Wireless BT Headphone Main Material: Plastic Speaker Size: 40mm Bluetooth Transmission Distance: 10-15m Endurance: 12H Playback Time Battery: 300mAh Lithium Polymer Battery Wired Link: 3.5mm Audio Cable Wireless BT: BT 5.0 Charging Interface: Type-C Size: 17.8*17*7.2cm Package Information: Package Size: 20*15*8cm Package Weight: 300g