Microphone:
Pattern: electret
Directional: omni-directional
Impedance: 3000 Ω
Sensitivity: -36 dB V / Pa, 1 kHz
Frequency: 100 Hz – 10 kHz

Speaker:
Operating voltage: 1,4 V
Power input: 1 mA
Operating time: approx. 80 hours
Battery type: A 10
Weight (incl. battery): 1,5 g
Pattern: magnetic
Sound pressure level: max. 120 dB
Frequency range: 300 Hz – 5 kHz

Send button (PTT-17):
Housing: ABS-plastic housing, black, with cloth clip
Life cycle PTT: min. 100.000 cycles

Additional data:
Temperature range: -10°C to +40°C
Weight: 104 g (incl. PTT button)