"Hello hello!" A brown-haired young man enthusiastically waved him over. He jogged a few steps to approach, and then greeted Assistant Hao again.,He didn't say anymore, but everyone understood what he meant.,"The battery in the camera is running low, so you'll have to find the spare batteries I've hidden around the factory. They are all used batteries, with just a little bit of charge left. To ensure four hours of continuous power, you'll need about eight." Hao Assistant announced the supplementary rules with a smile.。