- Duplex Intercom: it supports two-way intercom inside and outside the window.
- Auto-mute: it supports infrared detection function and can enter into mute mode automatically.
- Recording output: it supports headphone jack, and can output two-way sound signals inside and outside the window.
- Volume adjustment: it supports the sound inside and outside the window, and the volume can be adjusted.
- Power supply mode: DC12V / 0.2A
|Host speaker impedance power:||8 Ω, 3W|
|Extension speaker impedance power:||8 Ω, 2W|
|Host microphone sensitivity:||– 51 ± 2dB|
|Sensitivity of extension microphone:||– 44 ± 2dB|
|Signal to noise ratio:||≥ 90dB|
|Harmonic distortion:||< 0.5%|
|Working temperature:||– 20 ℃ ~ + 60 ℃|
|Working humidity:||10% – 90%|
|Extension size:||￠ 64x18mm|
|Packaging quantity:||20 sets/carton.|