The RDU4100 4 watt two-way radio operates on an innovative 89 business exclusive UHF frequencies. Enhanced audio quality, a rugged design and versatile customer programming software, make this radio an exceptional choice for all of your on-site business needs.The radio is part of the RDX Series of Motorola radios, a line of products designed to give businesses a competitive communications edge. Also known as -Motorola RDX Series UHF High Power Two-Way Radio, 4 Watt, 10 Channels, 89 Freque-Motorola/ACS RDU4100 4 Watt 10 Ch Uhf Radio