mini-size DVR,the camera built-in the button without konw by others,the size of the button are different.

 Features:- wired Butten Camera+MP4

-support MP4 function,supporting 4GB SD card.

-button camera video compression:AVI video format.

-supper slim DVR built-in rechargeable Li-battery.

-MP4 with 2Megal pixel digital camera.- 1/3" Color CMOS Camera- Pixel :320x240( NTSC )- 380 TV Lines - 0.1Lux - DC 5 V

mini-size DVR