SM07R1 Audio Details Technical Specifications Handheld Microphone With KeypadIP54 compliant handheld microphone with keypad providing reliable communication required in harsh working environments.Find a dealerHighlightsFunctionsAccessories for SM07R1 Included as standard with SM07R1Systems that work with SM07R1Technical SpecificationsMicrophone sensitivity -45dB ±3dB @1KHz, impedance ≤ 2.2KΩ, operating temperature -30°C to +60°CRelated Products TM-610