Feature: 1.2G FM transmitter; 1/3" CMOS camera, 380TVL; 30LEDs, 18m IR range; 30-100m unblocked transmitting distance; built-in microphone in the camera; cute design, high imaging quality; high performance-price ratio; suitable for household, companies, shops, factories, etc; Specification: Model No.: C228+R010 Image Sensor: 1/3" CMOS Horizontal Definition: 380TVL View Angle: 6mm/52? Minimum Illumination: 1Lux(0lux, IR ON) TV system: PAL/ NTSC Modulation Mode: FM Gain Control: Auto Output Frequency: 0.9/1.2/1.39GHz Operation Temperature: -10--+50degree Power Supply: camera DC12V/500mA; receiver DC9V/500mA Dimension: camera 57x62x65mm; receiver 81x116x21mm Weight: camera 220g; receiver 160g