SLR5700-DO Motorola Repreater Features include: VHF, 1 Channel, Supports Two Simultaneous Voice Paths, Operates in Analog or Digital Mode, Remote Diagnostics Alarms and Controls (RDAC), 100% Continuous Duty Cycle, Internal Power Supply (AAR10JCGANQ1AN) - 136-174 MHz (SLR5700-DO)