FEATURES: INDOOR 7″ Hands free LCD Monitor with Memory card slot Video recording and image capture Adjustable brightness, color and contrast Changeable chord melody (more than 13), Auto Shutdown Built in auto switcher for 2 door camera Hands-free communication Built in SMPS power supply Wiring : 4-Wire (Coaxial Cable) TFT resolution : 800(RGB)x480 OUTDOOR Two way communication with indoor phone. Video transmission Release door IR Cmos Camera Color 900 TVL