This scanner is the Sun Sun Edition, which does not have an LCD operation panel. It is operated via a computer or tablet. The operation app can be downloaded from Ricoh. Double-sided scanning has been tested and confirmed to be working correctly. A 7-day operational warranty is included from the date of delivery. It supports sizes from business cards to A4. Wi-Fi and USB cable connections are possible. Includes the original adapter; USB cable is not included, please prepare your own.