Depends on which one you went to. If you go to a KTV on Tongxin Road in the afternoon, it will probably cost 100 yuan. If you go to a KTV in Huidong, such as Jinsha, and book a room in Jiugong Mansion, it will probably be 150 yuan. KTV in Huidong has the lowest consumption, one person 15 yuan. The sound effect of singing on Tongxin Road is bauhinia, and the D key of Aishang Causeway Bay is barely acceptable. Huidong's KTV sound effect is good.