http://www.omejo.com

Information:

The World's Smallest audio Video recorder with Button shape camera for hidden AV recording. Connect the button camera directly with our AV recorder, no external power needed for the camera. super crisp real time audio video recording with date and time stamping. Specially designed for Law enforcement agencies for their hidden investigation. This amazing device is ideal for covert or spy operations. No Extra power for camera 
 
Features:
1. Special design for evidence collection.
2. Built in 2GB memory, support up to 2GB mini SD card.
3. Smallest Button shape camera with hidden AV recording.
4. No moving parts, inside SD / MMC card slot.
5. 5Great for investigation or surveillance.
6. N6o extra power required to power camera head.
7. Pla7y and record all kinds of MP4 movies.
8. Play 8and record Mp3 songs.
9. 2GB SD card (not included) can record 4 hours of audio video.
10. No installation just plug and play.
11. 10 Pcs. extra matching Buttons are included for the whole shirt.
12. Built in speaker + fashionable Earphone.
13. Built In microphone in camera for audio recording.
14. Easily connects to any personal computer with USB port for download
15.2.5" LCD display with On Off switch ( LCD can be turn off during spy recording) 

Button Camera Specification:
                                                           Color Pal                                             Color NTSC
Image:                                           1/3 CMOS sensor                               1/4 CMOS sensor
PICTURE ELEMENT:                  PAL: 628X582                                        NTSC:510X492
ELECTRONIC SHUTTER:         1/60-1/15000's                                       1/60S-6.3US
S/N RATIO:                                             >46dB                                                 >48dB
HORIZONTAL RESOLUTION:      382TV LINES                                       382 TV LINES
VIDEO OUTPUT:                              1Vp-p 75ohm                                      1Vp-p 75ohm
MIN ILLUMINATION:                             2LUX                                                    2.0LUX
BACKLIGHT OPENSATION:                AUTO                                                     AUTO
OPERATING TEMP:                            -10--+50                                                -10--+50
POWER SUPPLY:                              2.7-4.5V                                                  2.7-4.5V
POWER CONSUMPTION:                 <50mA                                                   <45mA
IC:                                                            OV7910                                                 Ov7930