7 ms·

Something like this? https://m.banggood.com/DIGOO-DG-DB1-433MHz-Wireless-Doorbell-58-Ringtones-Selection-Indoor-Outdoor-Chime-p-1703008.html https://m.banggood

• Cthulhu_ 5y ago
  I think that's similar to the one they are referring to; does it have the range to pass through a house into the back yard?