This device is a CCD scanner with a very intuitive interface, is lightweight and fits in the palm of your hand. The Bluetooth enables the device for real-time data transfer. The OPN-4000i with an special addition; It is Apple MFi certified. This means that it can connect to Apple products like the iPhone, iPod and iPad. When no Bluetooth connection can be made the OPN-4000 will store the data on the device until there is an connection again or when plugged in with an USB-cable.