Details: The RMU2040 has two channels pre-programmed to match the earlier RDU2020 model. An additional 2 channels may be programmed for a total of 4. This two-way radio operates on 99 business-exclusive UHF frequencies, and is 2013 FCC Narrowband ready. The default factory-programming on this RM Series radio is set to operate in 12.5kHz mode. Enhanced audio quality, a rugged design, and versatile customer programming software make this handheld radio an exceptional choice for all of your on-site business needs.