1: Nice 3.5 or 4 inch color TFT video door phone 2: Plastic ... 3: Handset indoor monitor 4: lowest price Hot color 3.5 or 4 inch TFT video door phone Model:SMT-V1C ... CCD sensor.6 LED lights,nightvision.**handset indoor monitor,3.5 inch or 4 inch TFT,clear image.**intercommunication,monitoring the ... (W)×33(H)mm **Wiring requirements:30M: RVV4 X 0.5 mm,50M: RVV4 X 0.75 mm,100M: RVV4 X ...