The QTX 171.835UK VL1 Lavalier Microphone VHF Wireless System is a compact and convenient solution for wireless audio transmission. It includes a half-width 1U receiver, a belt pack transmitter, and a lavalier tie-clip microphone. The package also comes with the required batteries and a Jack cable. The system has a wireless range of up to 50 meters and operates at a frequency of 174.5MHz. It is ideal for presentations, interviews, and performances where freedom of movement is essential. The product dimensions are 430 x 320 x 100 cm and it weighs 570 g. The manufacturer is qtx and the country of origin is China. This microphone system is reliable and easy to use, making it a great choice for various audio applications.