¿Cuál es tu señal?

剧情：

Matias is a boy who suffers from hearing loss, and one day without expecting it while he was looking for a book, fate had something new in store for him when he was introduced to Carlos, a handsome young man who was smitten from the moment he saw him and who makes a good strategy to surprise him and make him call him to ask him out, without knowing that Matias is deaf. What will Carlos' reaction be when he finds out?