Wireless Doorbell by LUAMB 1,000ft Range Loud Enough with 5 Volume Levels and 52 Chimes LED Flashing,1 Push Button and 2 Receiver.
LUAMB
SKYPOINT Expandable Waterproof Wireless Doorbell - Loud Alert System, Multi-Unit Base Starter Kit includes 2 x Long Range Plug in Receivers and 2 x 100% Waterproof Transmitter Buttons, SBase, White
SadoTech
Philips Wireless Doorbell Kit, Battery-Operated Reciever, LED Alert Lights, 1 Push Button, 32 Melodies, 3 Volume Levels, 150 Ft Range, White, DES3140W/28
Philips
SECRUI Doorbell, 2 Receiver Wireless Doorbell with 1000ft Range, Adjustable Volume, Waterproof Design, Hassle-Free Installation, 32 Melodies, White
SECRUI