The best wireless doorbell is a QR code doorbell!

• Get alerted anywhere straight to your phone - in the basement, in the garden, at the neighbors... anywhere!
• No batteries required
• Total privacy compared to smart doorbells, and no apps needed
• There's no video stream of you and your home being broadcast online
• QR code doorbells are better than leaving your number on the door - Your visitor doesn't ever see your contact details
• Notify up to 3 email addresses or devices for free, or go premium for just $0.5 per month to let visitors leave a message or photo, schedule quiet times, customize your doorbell, and more!
• More info about QR code doorbells