Product features: (1). Receiver with 4 channels switch able automatically or manually, unique appearance (2). (2)Cameras with IR LED light: effective night vision range 8-10M (3). Clear picture achieved by Sharp CCD camera (4). Built-in mini microphone for audio monitoring (5). 500M transmission distance without block

Camera CM270CWAS Specifications: TV System NTSC Validity Pixel 628(H) x 582(V) 510(H) x 492(V) Image Device 1/4" Sharp CCD Horizontal Definition 420TV Line Angular Field of View 45 degree (f=6mm) Minimum Illumination 0Lux Synchronization System Internal Scanning Frequency) 15.625KHz 15.734KHz Scanning Frequency) 50Hz 60Hz Backlight Compensation Auto Electronic Shutter 1/50(1/60)~1/100, 000sec White Balance Auto S/N Ratio >48db Gamma Correction >0.45 Operation Temperature -10~50/+14~+122?C/?F Transmission frequency ISM 2, 400~2, 483MHz Power Adapter DC12V/500mA Dimension 130x102x48mm Weight 160g

Receiver RC450A Specifications: Receiving Frequency ISM 2, 400~2, 483MHz Intermediate Frequency 480MHz Frequency Stabilization: nearly 100MHz Demodulation Mode FM Antenna 50ohm SMA Receiving Sensitivity ≤-85dBm Video Output 1Vp-p@75Ω, S/N>38dB Audio Output 1Vp-p@600Ω Power Adapter DC 12V/500mA Operation Temperature -10~50/+14~+122?C/?F Operation Humidity 85%RH Dimension 91x45x120mm Weight 120g