This is the Audio-Technica ATW-T601X Freeway UniPak Body Pack Transmitter. It is a wireless microphone unipak that is perfect for musicians and audio professionals who need a reliable and high-quality microphone setup. With a range of features, including a bodypack transmitter, this microphone is perfect for any live performance or recording session.

The brand of this microphone is Audio-Technica, a well-known and respected name in the audio industry. The model number is 600, and it has a form factor of a wireless microphone unipak. It also has several features that make it stand out, such as the bodypack transmitter. This microphone falls under the categories of "Musical Instruments & Gear," "Pro Audio Equipment," and "Microphones & Wireless Systems."