Magicfly 7 inch 3PCS Color LCD Touch Key Wired Video Door Phone Doorbell Intercom System With Ir Camera Rainproof Support 4 channel monitor camera input and 1 channel output Support SD card record, record time is 10s,max:32G SD card, product equipped witch 2G card Rainproof and oxidation proof, durable alloy outdoor station, supporting embedded and hanging installation No radiation, low consumption, high resolution,7 inch digital color screen Monitor, intercom, hand-free, multi melody;Electric-lock control; Infrared night vision