Microfon audio cu preamplificator LN-SM04; pentru camere de supraveghere video, distanta de acoperire: 5-50 metri patrati; Built-in IC audio professional amplifier; Output level: 0-6V; Output impedance: 600Ω; alimentare: DC6-12V; Frequency response: 2.5dB; Micro-chip design, small noise, high-fidelity; material: ABS; culoare alba; temperatura de functionare: -20°C la 50°C; greutate: 50g