Colorful Flashing Wireless Doorbell Light up Lamp Home Use Deaf Elderly Digital Music Reminder Service Call Can Be Muted

I purchased this because it features both sound and lights, which are helpful for my elderly father, who has hearing difficulties. It's smaller than I expected, but it serves my needs well. I do wish the delivery time could be shorter, as the waiting period is somewhat inconvenient. Unfortunately, I couldn't find similar doorbells in Singapore.

Great! Even with the security door and an extra wall, it's no problem at all. I'm no longer worried about the elderly not being able to hear.