In Degang Guo's cross talk, "You don't need electricity to speak louder!" What does that mean?

This sentence is a joke. Speak louder and don't waste electricity. Well, it's a joke. This sentence itself means that you must, um, talk without wasting electricity. This TV refers to a shop with electricity. It also means including the physical strength and knowledge of this TV, but he means joking here. What he means is not to waste the shop. This sentence means joking. Speak louder and don't waste electricity. This sentence itself means that you must, um, talk without wasting electricity. This TV refers to electricity. There is another meaning in our store, that is, it includes this, this TV, physical strength, knowledge and so on, but he is joking here, and he means not to waste the store.