・ Electronic dictionary SL903XB ・ Case This is a Seiko Instruments electronic dictionary. Operation has been confirmed with AAA batteries. The built-in lithium battery is unused. Purchased upon entering university, it was only used once or twice, so it's close to being new, but it is still a used item, so please understand this before purchasing. ※ This is a university co-op model. The general model appears to be equivalent to "SR-S9003."