Model Number: CBK7M4-11 Brand Name: cbook Key Specifications/Special Features: 1.Video formats: AVI2. Video moduleMaterials: paper + electronics3. Memory capacity: 2G4. One button control or each button controls each video5. Power supply: built-in rechargeable3.7V lithium batteryor USB 5V supply6. With USB for recharge and upload video7. Interface: mini-USB8. Operation system:XP/Vista/Windows 7/Mac and more Materials video greeting card/video brochure + TFT sreen + USB + Battery TFT / LCD Screen sizes 2.7" , 4.3" , 5.1", 7" , 10.1" Memory Sizes 256MB, 512MB, 1GB, 2GB, 4GB, Battery 300mAh, 500mAh, 1000mAh, 1200mAh, 1500mAh, Li-ion battery Video format support AVI/AVM/MP4/3GP/WMV Power supply Rechargeable battery Activation Press button, slider button, magnet button, light-sensor button,Thehuman bodysensors Accessories USB Cable Switch Magnet switch on-off, light sensor on-off, press button on-off, pin switch on-off, push button on-off ,motion sensor Special Craft Spot UV print, embossing etc, Hotsilver Picture format support JPG,JPEG Usage Gifts, promotional items, business advertising, Special events, Personal introduction