Doorbells can't be heard from backyard

My front & back doorbell are working fine, but I would like to find a way that I can hear the bells from the back yard. Any ideas?

If you are referring to 2GIG DBELL1-345 doorbells, they do support standard doorbell wiring. If you are only using them for wireless functionality, a TS1 near the back door may solve the issue.

Keep in mind you can use doorbells for sensor activity monitoring notifications, have them sent straight to your phone, so you would know even if you were in someone else’s backyard.