Using the body's sense of perception and touch as an entry point, the program explores the weak power of hair strands to create a sound interaction device. The hair and the comb are the interactive media, the program receives the signal frequency and controls the operation of the water pump, the water drops fall into the bucket of different tones, forming sound. The audience picks up the comb and uses the hair to explore the invisible power of the flow, using sound to touch the space.