distance: 30 meters (indoor), 20 meters (semi open area), 15 meters (outdoor)
Directional response characteristics: super directional beam
Beam width: ± 45 °
Sensitivity: -27dB
Frequency response: 200-8000Hz
Signal to noise ratio: 78dB
Dynamic range: 74dB
● withstand sound pressure: 110 dB SPL (1KHz, THD<1%)
Output impedance: 3900 ohms
Output signal amplitude: 1.5Vpp/80dB SPL
● Microphone: Omnidirectional microphone
Signal processing circuit: low noise/high computing power/adaptive processing technology

● Protection circuit: lightning protection, power polarity reversal protection
● Driving capability: Built in preamplifier circuit, can directly drive headphones
Power type: POE/DC power adapter
Temperature range: -20 ° -70 °
Features: IP65 waterproof, dustproof, moisture-proof
Flame retardant grade: V0
Connection method: 1 3.5mm audio interface
1 power interface
1 POE network port
Installation method: ceiling mounted, side wall lifting, M1/4 screws directly connected to the camera base