1), 1.5-inch cstn lcd, resolutions: 128 x 128 2), built-in 2 hrs rechargeable lithium-ion provides 3), supports jpg, bmp, and gif play format 4), built-in o'clock and calendar function 5), auto power off function 6), built auto run software to manager photo 7), built-in flash 8mb, can store 180 pictures.( memory size is optional) 8), mini usb port connection 9), three function keystrokes