Features 1) Display 1.0 inch color CSTN LCD 2) Supported formats BMP, JPG, PNG, GIF, TIFF 3) Connection USB1.1 4) Picture storage up to 56 pictures 5) Play photos auto/manual 6) Power 3.7V lithium battery or USB Power 7) Low battery alarm auto 8) Power control auto power off after 2 minutes without operation / manual power on and off 9) OS support Win98SE/ME/2000/XP 10) Dimensions 55.5 x 15.8 x 55.5 mm 11) Weight 40g