My mom is quite hard of hearing. I was able to choose a tune (out of the many) that is loud and plays a long time. There are even holiday tunes. It is almost to the point of being annoying to me, but it gets her attention. Syncing the buttons to the units was simple by following the directions. I wish the flashing blue lights were brighter, but they still are helpful. You have to plug them into an outlet, so I plugged the living room unit into a power strip on the TV stand so it was clearly visible. One of the push-buttons fell off the siding on the porch (sticky-back adhesive came with it), so I have to make sure I secure it well.
Wireless Doorbell Chime - AVANTEK Mini Waterproof, 1000 Feet Range, 52 Melodies & 5 Volume Levels With LED Flash
31 Review
Optimize Viewing With CAVN Black Angle Mount For Ring Video Doorbell 1 2 3 4 - Adjustable 30 To 55 Degree Angle
30 Review
Stay Connected With A 1000 Feet Range - SadoTech'S Baby Blue Wireless Doorbell With LED Flash
32 Review
Universal 24V 40VA Thermostat / Doorbell Transformer: Compatible with Honeywell, Nest, Sensi, Ecobee, Nest Hello, and Ring Doorbells
43 Review
Wireless Electronic Ballast Interface Certified
8 Review
💡 High-Quality Advance ICN-4P32-SC Electronic Fluorescent Ballast: Ideal for 4 Lamps, 32W T8, 120/277V
3 Review
💡 Hydrofarm Quantum QT400 Dimmable Ballast for 400W Grow Lights
5 Review
💡 Electronic FL Ballast ICN-4P32-N (Formerly ICN-4P32-SC) for 3-4 F32T8 F40T8 F17T8 Lamps, 120V/277V Compatibility
5 Review