What is ktv, and what does ktv mean out of the box?

Ktv ah, is Karaoke

Television. Karaok is a Japanese-English miscellaneous name.

A place that provides karaoke audio-visual equipment and visual singing space.

Broadly interpreted as a nighttime entertainment center with karaoke, slow rock, HI room, background music, and beverage service.

Out of the box, that is ...