The item in the image is the Earldom MC15C Button Wireless Microphone system.
Features: It utilizes a strong magnetic attraction system for easy wearing and includes built-in noise reduction technology for clear audio capture.
Compatibility: The system features a plug-and-play receiver available with either a Type-C connector for Android devices or an 8-Pin connector for iPhones.
Specifications: It offers a stable wireless transmission range of up to 25 meters and is lightweight for portability.