[MULTI-POINT CONNETCTION & COMPLETELY WIRELESS]Widely compatible with most Bluetooth-enabled devices, like cellphone, computer, tablet and laptop, etc. Simultaneously connect any two Bluetooth devices via Bluetooth 5.1 and seamlessly switch between the two at will,which can maintain a fast and stable connection.The 33 feet wireless range provides freedom to roam while staying connected,you dont even have to be able to find those phones to take a call. [ADVANCED NOISE CANCELLATION MIC] Advanced noise-canceling technology isolates your voice from the noise around you, so you can focuse on what you want to do ,even in the noistest work environment.330° flexible mic can be positioned for better voice capture and background noise reduction.Perfect for truck drivers, Skype meetings,taking conference calls and outdoor working or studying. [EASY CONTROL & MULTI- FUNCTION]KEHIwireless bluetooth headphones provides an simple and intuitive and interface to answer/end calls,adjust volume, and play