UDM-240ZH Handheld & UDM-240ZV Mobile/Base Station Repeater. UDM-240ZV Interfaces to all Major Brands of Mobile Radios. The UDM Series provides both on-site and/or repeater mode communications. Ideal for dispatch centers, toll booths, small offices, electrical/tower crews, or anywhere you need to stay connected. Package includes: UDM-240ZH – Speaker Microphone and Charger & UDM-240ZV – Interface Module, Antenna, and Interface Cables.