The Uniden UH820 is of trade quality and professional product that offers the finest components, engineering and styling and outstanding performance in all conditions and situations. The UH820 has a Smart Key feature allowing you to toggle between the instant channel, call tone or keypad lock feature to tailor to your needs. The UH820 has a range of up to 13Km and with its range extender (Duplex) Capability the unit can achieve even further range depending on the location of your local repeater station and topographical conditions. The unit also has an operating time of up to 21 hours and can be easily, quickly and in a cost saving manner be charged through a Micro USB.