A "button" wireless lapel mic, also known as a lavalier or lapel mic, is a small, discreet device that clips onto clothing and transmits audio wirelessly to a receiver, enabling hands-free recording and speaking. It typically includes a transmitter, a microphone with a built-in button for power or other functions, and a receiver that connects to a device like a smartphone or camera. These mics offer high-quality sound capture, automatic pairing, noise reduction, wide compatibility, long battery life, and versatile use for content creators, journalists, and professionals.