【Advanced Bluetooth 5.1 Earphones & CVC8.0 Noise Cancellation】Adopting advanced Bluetooth V5.1, these earphones provide a stable wireless connection. They offer a transmission distance of up to 10m (without obstacles). The stable connection to the headphones delivers clear, distortion-free sound. The built-in noise reduction system generates sound waves that cancel out surrounding noise, reducing noise without compromising sound quality. 【100 Hours of Continuous Operation & Type-C Charging】When fully charged, the Bluetooth headset allows for 10 hours of music playback and 12 hours of talk time. Additionally, to prevent loss of the earphones, a 500mAh charging case is included. When used with the charging case, up to 100 hours of continuous use is possible. The LED screen displays the remaining battery level of the charging case numerically at a glance. Both the earphones and the charging case support Type-C charging, so you don't have to worry if you forget the charging case when you go out. You can easily carry them for commuting or business trips without worrying about battery shortage. 【With Microphone & Mute Function】Equipped with a dedicated call microphone, which is made slightly longer than other single-ear earphones, allowing for smoother calls as it's closer to your mouth. Also, to protect personal privacy, a mute function is included; during a call, pressing the "MFB key" will prevent your voice from being heard by the other party, which is convenient during meetings or when handling confidential information. Furthermore, it supports Siri, allowing for voice control while driving. 【Comfortable Fit & Compatible with Both Ears】The Bluetooth headset has a unique and stylish appearance. The ear hooks with a fit structure for stable wearing are made of smooth paint and skin-friendly silicone rubber material, providing a soft wearing experience. It perfectly matches your business atmosphere and is lightweight, designed to fit accurately and comfortably in ears of all sizes. Moreover, it can connect to two devices simultaneously, allowing you to separate your personal and work life, making it very convenient to answer calls from either phone.