This is a great work around for a doorbell
Verified Post by Robert Vesey
Published on 08 Jun, 2018
NATOL Self-Powered Wireless Doorbell Waterproof IP68, 650FT Free-Barrier Transmission with 28 Chimes and 4 Adjustable Volumes, (NT-WD02, Black)
it is loud and adjustable and it does not eat up electricity just sitting on the wall like other adapter plug ins.