3G mini DVS support GPS, SMS , alert, DVR WCDMA/HSPA smart design smallest 3G DVS in the world ... headphone output,support central intercom.6Video disposalH264 coding ,support D1+CIF,support 0.1M-4Mpbs stream adjustable,support 1-25 frames ... press again to automatically scratch photo,and save in IF card.14View button2 Play&back button ,support online preview.15Reset buttonReset ...