Using The Universal Remote

Ryan was trying to watch TV, but his baby sister kept crying. She always had trouble sleeping. Ryan couldn't really do anything about it. But then he thought *Why not? I've got that universal remote.* He grabbed the remote from his bedroom and ran into the baby's room. Then he pointed it at the baby. He wasn't sure if it would actually work or not. But what was the harm in trying? He pressed MUTE and the baby's crying was suddenly silenced. The baby was still clearly crying, but it made no sound. "It worked!" "What worked?" his 8-year old sister asked, from behind him.