商用 しょうよう電源 でんげん しき計算 けいさん じゃないです
shōyōdengen shi kikeisankijanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 商用電源式計算器

1. It's not a commercially powered calculator.; It isn't a commercially powered calculator.

Negative
Polite
Casual Register
Computing