... V,V-VMemory channel128Channel spacing12.5KHz /25KHzFrequency stability±2.5ppmAntenna impedance50ΩOperate voltagerated DC7.4V TransmiterRF output ... 60°CStorage temperature-40°C ~ +85°CType: AT-UV2 dual band radioColor: black, red, military, orange, blueWeight: 0.8KG ... unless it is dedicated intercom dangerous areas (for example, Factory Mutual, CAS, or UL certified).To avoid electromagnetic interference ...