hello.Rinnai is a warm-hearted person making the whole world.The Rinnai Smart Service App has the following features.1. Connect by phone- This is a telephone connection service that can be directly connected to a counselor.2. Consultation request- This is a service that allows you to make a reservation for consultation with a counselor when it is difficult to connect by phone right away.3. Business trip application- If you need AS, you can apply for a business trip visit.4. Product registration- Participate in various product registration promotion events and experience many benefits.In addition, a convenient KakaoTalk chatbot connection and a hand speech center for those who are uncomfortable talking are configured for ease of use.We always listen to customer feedback.