A-szcxtop(tm) Mini DVR U8 USB Disk Hd Hidden Spy Camera Motion Detector Video Recorder 720x480 Resolution rate: 720 x 480 ; Frame rate: 25-30fps ; Picture format: JPG 1280*1024; Image: 5M pix; Image ratio: 4:3 Video format: AVI; Video coding: M-JPEG; Battery capacity: 300mAh ;Battery type: Rechargeble high capacity polymer lithium electricity; Working time: about 120 minutes Memory card: micro SD card. Support up to 32GB (Memory card not included) Support system: Win 2000/xp/vista 32, Win 7, Mac OS