Model: W203I2 Key Features: >380 TVL of horizontal definition. >Micro-camera easy for installation. >2 cameras available for watch. >Receiver with 2 channels exchangeble. >100m transmission distance without block. > Audio monitoring with microphone in camera Packing: Package: Color Box Pcs/ctn: 20pcs/ctn Ctn Size: 504037cm Accessories: Receiver 1pc Wireless Camera 1pc Power adapter 3pc 12V 500mA for receiver 8V 500mA Mini Camera A/V cable 1pc Manual 1pc