This is the Fuliam WM500-UR UHF Wireless Lavalier Microphone System, with a 16-channel lavalier. It is perfect for broadcasting and other pro audio applications. The system includes four transmitters, each with a built-in antenna, and features automatic transmitter setup and bodypack transmission. The package dimensions are 11.65x9.53x4.17 inches, and the weight is 3.59 pounds. The color is black, and the model is WM500-UR.

With wireless connectivity, this system is easy to use and provides a comfortable and convenient way to wear a lavalier microphone. It is suitable for musical instruments and other gear, and is a great addition to any pro audio equipment collection. Whether you're a professional broadcaster or just starting out, this wireless lavalier microphone system is a must-have.