1.Diagonal: 1.5 inch screen 2.Resolution: 128 � 128 3.Picture formats: JPG,BMP4.Buttons: Menu. UP and Down three buttons 5.Play mode: manual or automatic play 6.With Time and calendar functions 7.Rechargeable Lithium battery8.Power supply: built-in 3.7V lithium battery or USB 5V supply 9.120 seconds auto shut off10.Interface: USB 2.0 11.Operation system: win 2000 / XP 12.Material: plastic+stainless steel back 13.Accessories: USB cable, key buckle, instruction manual, white box etc