Ultra-long Battery Life800mAh built-in battery, up to 150 hours long play time. 45db ANC TechnologyAstonishing 45db ANC noise cancelling technology, block 95% of the noise for you, giving you silence personal space. Bluetooth 5.3 VersionUpdate bluetooth 5.3 version, which only takes 1-3 seconds to connect to your mobile with stable signal transmission and low energy consumption. 38ms low latencyNo sense of delay makes playing gameslistening to music, and watching videos more smoothly. Wireless &wired swichableA 3.5mm audio cable is included, You can continue to enjoy your music even when the headphones are out of battery. Humanized DesignThe stainless steel head bow ensures a long service life of the earphones; Super soft delicate and skin-friendly protein leather ear pads, painless to wear. Rotating and folding structure, portable and easy to store.