How much is the price of Nanjing medical equipment camera?

As far as I know, KTV rooms should not have cameras, otherwise you think they have so much spare money to install cameras in so many rooms? There are cameras in corridors and aisles. Hanging on it should be a stage lamp, like effect light's. You should have turned on all the lights and tried it. You really don't trust to ask the waiter in the corridor. Anyway, you are the kind of person who is curious and doesn't know what his purpose is. The last piece of advice, sometimes you can't help but endure a little, and you can't help but make a great plan. hahaha~