Information about this product [Bluetooth 5.1 Headset & CVC 8.0 Noise Reduction] - This Bluetooth headset meets the Bluetooth V5.1 standard, so you can achieve faster and more stable transmission. The transmission range is up to 10 m (without obstacles). In addition, the Bluetooth headset is equipped with advanced noise reduction technology for a more natural, undistorted sound quality and clear sound. [LED Battery & Charger] - The mobile phone headset is designed for 12-15 hours of continuous phone conversation and up to 100 hours with the charger. 480 hours of standby time. The mobile phone is equipped with a type-C quick charge function, which after a 1.5-hour quick charge for 12 hours allows you to communicate like face-to-face. [Microphone for phone calls and handsfree] - The microphone is designed for phone calls, not only can you hear other people easily, but it also prevents noise and noises around you from being recorded. When you receive 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 for 2 seconds to activate/deactivate the microphone. [Comfortable Wearing & Binaural Versatility] - The main body of the Bluetooth headset weighs only 12g, which will not cause pain even when worn for a long time. In addition, the earhook can be rotated 180°, so you can adjust it to your preferred angle. The streamlined design, which rests on the line of the ear, provides a comfortable fit for both the left and right ear. [Multifunctional Buttons & Simultaneous Connection to 2 Devices] - The Bluetooth headset with microphone is equipped with a multifunctional button that allows you to play or pause music, answer or reject calls.