カチャカチャ

adverb, adverb taking the 'to' particle, noun or participle which takes 'suru'

clink; clatter; clang

Onomatopoeia for light, repeated metallic or hard-object sounds, such as keys, dishes, or small tools hitting each other.

• キーボードをカチャカチャと打うつ音おとが聞きこえる。

  I can hear the clattering sound of typing on a keyboard.