1.Diagonal: 1.1 inch CSTN screen 2.Resolution: 96× 64 3.Built-in memory: 8MB, can store 190 pictures at most 4.Picture formats: BMP, JPEG 5.Buttons: Menu. UP and Down three buttons 6.Play mode: manual or automatic play 7.With Time and calendar functions 8.Rechargeable Lithium battery with 8--10 hours playtime 9.Power supply: built-in 3.7V lithium battery or USB 5V supply 10.120s auto shut off 11.Interface : USB 2.0 12.Operation system: win 2000 / XP