The RDX series brings workplace noise to it’s knees by helping to ensure exceptional audio quality in the loudest environments. Designed for noisy areas, our radios are 30% louder than previous Motorola XTN and AX models as a result of new design enhancements. This business-essential radio provides the perfect partnership of excellent audio and exceptional durability. The RDU4100 4 watt two-way radio operates on an innovative 89 business-exclusive UHF frequencies and is 2013 FCC Narrowband ready. The default factory programming on this RDX radio is set to operate in 12.5kHz mode. 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. Due to the FCC Narrowbanding mandate in the United States, product specifications and brochures for Motorola Solutions two-way radio products may indicate 25 kHz/12.5 kHz analog/digital operation which may not be the standard mode of operation at the time of shipment after Jan. 1st 2013. Business-Exclusive Frequencies89 UHF frequencies make signals extra-secure and exceptionally clear. 219 codes, including customized PL and DPL codes to help ensure a clear signal Exceptional Voice QualityDelivers increased clarity through wind-noise reduction. Rugged and Water-ResistantMeets military specifications for sealing against dust, wind, shock, vibration and other adverse conditions. Customer Programming SoftwareAllows users to perform programming functions and access new features. Bright SensorsTricolor LED indicator shows feedback of calling or monitoring features. Enhanced Battery PerformanceLithium-ion battery lasts longer, with no memory over-charge side effects. Simplified CloningQuickly copies settings from radio to radio when used with accessory. Voice ActivationEnables hands-free operation when used with accessory. Disable ChannelAllows users to disable and skip undesirable channels via the customer programming software (CPS) Channel AnnunciationVoice support for channel announcement Repeater CapabilityCompatible with duplex repeaters so you can significantly extend your radio coverage area Dynamic Talkaround ScanAllows the radio to automatically switch between repeater and talkaround modes in order to optimize communications.