Bluetooth 5.1 headset and CVC 8.0 noise cancellation: This Bluetooth headset adopts the Bluetooth V5.1 standard, you can use a faster one and achieve more stable transmission. The transmission range is up to 10m (without obstacles). In addition, the Bluetooth headset is equipped with advanced noise cancellation technology that produces a more natural, distortion-free sound quality and clear sound. Battery and LED charging box: The mobile phone headset was used for up to 12-15 hours of uninterrupted calls and up to 100 hours with a charging box. 480 hours standby time. The headset mobile phone has a Type-C fast charge function, which enables a personal communication experience for 12 hours with a single 1.5 hour fast charge. Microphone for calls and hands-free: The microphone is designed for calls, it is not only easy to listen to other people, but also prevents noise and noise to be recorded around you. When you get an incoming call, you can answer it as usual, so you can talk to your customer comfortably. In addition, you can press the volume button +/- 2 seconds to activate/deactivate the microphone. Comfortable wearing comfort and binaural universality: The main body of the mobile phone headset Bluetooth weighs only 12g (0.42oz), which does not cause pain even when worn for a long time. In addition, the earhook is 180° adjustable, so you can adjust it to your preferred angle. The streamlined design based on the ear line ensures a comfortable fit for both left and right ear.