ACOUSTIC RESPONSE
SPEAKER OUTPUT FREQUENCY RANGE: 300 - 3,000 HZ
SPEAKER IMPEDANCE: 300Ω ± 20% AT 1,000 HZ
MICROPHONE INPUT FREQUENCY RANGE: 300 - 3,500 HZ
MICROPHONE IMPEDANCE: 150Ω ± 20% AT 1,000 HZ
MICROPHONE AUDIO LEVEL: 10MVRMS WITH 1,000 HZ, 103 DB SPL

ENVIRONMENTAL
OPERATING TEMPERATURE: -31°C TO +65°C
STRONG TEMPERATURE: -33°C TO +71°C
HUMDITY: 95% AT 60°C
IMMERSION: 20M FOR 2HRS

WEIGHT
HEADSET: 255G