1.1-inch LCD screen Resolution: 96 x 64 pixels Built-in NAND flash: 8 to 16MB Can store up to 47 to 110 pieces pictures Battery working period: 8 to 10 hours Built-in 3.7V Lithium battery or 5V USB Timing function Size: 54 x 45 x 20mm (egg-shaped) Supports BMP and JPEG picture format Display modes: manual and automatic Electricity saving function: power can be turned off automatically Contrast/backlight adjustment Delete function: can delete one or all the pictures at one time Supports Windows 2000, XP and Vista USB1.1 without driver Weight: 22g Accessories: keychain, lanyard and USB cable