The Sennheiser XSW IEM SR Half-Rack Stereo UHF Transmitter is a must-have for musicians performing live on club stages or in houses of worship. With its compact design (approx. 200 x 128 x 42 mm and weighing around 700 g), it's easy to transport and set up. It works with the XSW IEM EK Stereo Receiver, offering features like 960 frequencies across 8 banks, a backlit LCD screen, IR sync, and more. Ideal for musicians seeking reliable wireless sound during rehearsals and performances.