This is a science-oriented electronic dictionary I bought when I was a university student. It includes numerous dictionaries useful for science studies, such as a chemistry dictionary, a physics dictionary, a biology dictionary, and a mathematics encyclopedia. It also comes with an SD card containing Chinese dictionary data. ✅ Operation confirmed (power, key input, audio, touch pen OK) ✅ Initialized (user name and learning history deleted) ✅ The main body is in relatively good condition because it was kept in a cover. The cover has some scratches (see photo 19). Batteries will be removed for shipping to prevent leakage. The SD card is inserted in the main unit. It operates on two AA batteries. Accessories: Main unit, cover, SD card (inserted in the main unit), paper with password written on it (the password set on the main unit cannot be changed) *Price negotiations will be declined. Immediate purchase is welcome.