First Alert 4 Channel Digital Wireless Recording System with 7" LCD Display and 1 Digital Camera DWS-471 N/A Imported 7" monitor is built into the receiver to display up to 4 channels at once. Supports up to 4 wireless cameras, 2.4 GHz Secure Digital Technology.. Supports real-time AV preview and recording up to VGA@25 FPS(Single Camera Mode) or QVGA@25fps/CH (Multiple camera mode). 4 GB Micro SD Card Included. Supports a maximum of 32GB SDHC memory card. Simultaneously preview and record from all 4 wireless cameras, Independent motion-detect recording with adjustable mask zone on any of 4 cameras.