This clock will easily blend in anywhere; only you will know that it is actually a DVR recording sight and sound. It is perfect for covert surveillance. With just a push of a button you can record approximately 90 minutes of 720 x 480 video in AVI format at 30 FPS with the included 4 GB micro SD card (will support up to 16GB).Or， to save battery life， the DVR520 is the first clock DVR with a built-in motion detector. The motion detection feature allows you to record only when something is happening. This clock DVR is also a 2 megapixel (1600 x 1200) camera that will take still pictures in JPG format.To view the video just connect the clock to the USB port on your computer and you are ready to see the video with Windows Media Player or pictures using your favorite JPG viewer.This item can also be used as a web cam using the included driver. It includes the USB cable for connecting to a computer and CD with PC camera driver. The clock measures 2 5/8" by 7/8" by 5/8" and flips up to a maximum height of 3".The clock operates on a built in high capacity lithium polymer battery that will operate the DVR for approximately 120 minutes of continuous use. It will be recharged when hooked up to a computer.Specifications:Video format: AVIVideo encoding: M-JPEGVideo resolution: 720*480 VGAVideo frame rate: 30fpsMedia playing software Attached software of the operating system or mainstream audio and video media playing softwarePicture format: JPG 1600 * 1200Picture pixels: 2 MegapixelThe ratio of image 4:3Supporting system Windows me/2000 xp 2003istaBattery capacity: 300mAhWorking hour About: 120 minutesCharge pressure: DC-5VInterface type: MINI 4pin USBStorage support: micro SD cardBattery type High-capacity lithium polymerInstructions:1. On/Off: Long press the power key boot， the camera begins system initialization (both the green and red light)， after the initialization process is ended the red light is off.A long green light to enter teh default camera， take pictures， motion detection standby mode. Long press the power key to save the file and shutdown.2. Direct Mode Change: this product has quick access to the mode state: boot initialization finished， each mode can be entered directly through the two buttons without mode changing.3. Video Mode: When this product turns off， insert the TF card， long press Power key， dual-lamp lights up. After the initialization process is ended it will enter camera video recording mode， short press teh K2 button to view current working state.After the long green light， short press K1 key to save the video files and return to recording state.4. Photo Mode:Insert TF card， Short press K2 key to take photo， the green light flashes once and save a photo.5. Motion Detection: This product comes with an outstanding home security function that is the motion detection: whenver there is object moving into the camera view range， the camera