The <b>ULXD1</b> Wireless Bodypack Transmitter by Shure is for capturing audio. It can be used in various environments, when paired with a ULXD4 receiver for applications such as, theater, stage, broadcast TV, DJ setups, and more. The ULXD1 compact bodypack transmitter is enclosed in a rugged metal housing with a TA4-M (4-pin male) audio input connector and features a comprehensive LCD display.</p><p>The ULXD1 features pristine, compandor-free digital transmission for uncompromising sound quality, range and detail. Its 256-bit encryption keeps wireless transmissions secure, and its adjustable RF output power delivers maximum range wherever necessary. The ULXD1 operates on either alkaline AA batteries or Li-Ion rechargeable batteries for up to 12 hours.</p><p><strong>Please Note:</strong> When purchasing separate wireless components, please match their frequency bands to ensure proper system operation.</p>