-WEIGHT: 85g SIZE: 40 x 160mm
-MICROPHONE: Vibration-sensitive, impedance approx. 3500 Ohm @ 1 khz SPEAKER IMPEDANCE: 32 Ohm
-CABLE, COILED (flame-retardant): 4mm Dia/380mm
-CABLE, STRAIGHT (flashover-proof): 4mm Dia/750mm
-CONNECTOR: 4-pole quick-release connector
-OPERATING TEMPERATURE: -25 to +85°C (continuous)
-STORAGE TEMPERATURE: -25 to +63°C
-HUMIDITY: 95% RH, 63°C for 500 hours