Mini DVR camera Once illegal invasion is detected, the infrared detecting transmission signal will start-up recorder automatically to record.Meatime take place alarm. It can offer powerful evidence for the case. Power off protected, built-in lithium battery in the dvr. Real-time monitoring.Can connect with tv or monitor directly, watch in-phase real-time recording picture. Support sd card of 128m/512m/1gb. Built-in 1/4fªccd camera, 420tv lines clear picture display. Built-in microphone for audio monitoring when recording. With usb port as u-tray to deposit the massage in pc in-time for analyzing the case. Tiny size for discreet observation & portability. Gross weight 750g Gift box