1.Diagonal: 1.5 inch cstn screen 2.Resolution: 128 ¡Á 128 3.Built-in memory: 8mb, can store 75 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: built-in 3.7v 3a battery or usb 5v supply 10.120s auto shut off 11.Interface : usb 2.0 12.Operation system: win 2000 / xp / mac (option) 13.Colors : pink, green, purple, black, pink, silver Quantity/c:50pcs Carton size (mm):485¡Á485¡Á200 N.W.:11.5kg