What are the disadvantages of a wired doorbell include installation complexity, dependency on electricity, and limited smart features for basic models. First, installation is more difficult than wireless, it requires existing low voltage wiring and transformer, and if no wiring exists you need to run wires through walls, install transformer at electrical panel, and mount chime, which may require electrician costing $150 to $400, whereas wireless doorbells just stick on. Second, if power goes out, traditional wired doorbells without battery backup will not work, you will not hear chime, while battery wireless can still work. Third, wired location is fixed by where wires are, you cannot easily move it to another door without rewiring, while wireless can be moved. Fourth, basic wired doorbells lack smart features like video, motion alerts, phone notifications, unless you upgrade to wired smart doorbell. Fifth, wiring can deteriorate, corrode, or be damaged by rodents, causing troubleshooting difficulty. Sixth, compatibility issues, old transformers may not provide enough power for modern video doorbells, requiring upgrade. Despite these, wired doorbells are generally more reliable long term, never need battery charging, and provide continuous power for video doorbells, so disadvantages are mainly upfront installation.
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