Baby monitor has static or crackling noise

Symptoms

• Constant or intermittent static/hissing sound
• Crackling that gets worse near certain rooms or times of day
• Sound is muffled along with the static
• Static appears even when the baby's room is quiet

Likely causes

• CommonInterference from other wireless devicesCordless phones, Wi-Fi routers, and other baby monitors on the same frequency band are common sources of static.
• CommonLow battery on the camera or parent unitAs batteries drain, some monitors produce crackling or distorted audio before losing connection entirely.
• CommonUnits placed too far apart or with too many obstaclesA weak signal at the edge of range often sounds like static rather than a clean cutout.
• PossibleMicrophone picking up background noise (fans, white noise machines)Some monitors amplify ambient household sounds that can resemble static.
• PossibleDamaged microphone or speakerPhysical damage from a drop or moisture exposure can cause persistent distortion.

What to do

1. Move the monitor camera and receiver a bit closer together to see if static clears up.
2. Charge both units fully, since crackling audio is a common sign of low battery on some models.
3. Turn off or move other 2.4GHz wireless devices in the house temporarily to test if static disappears.
4. If the monitor has a channel selection feature, try switching to a different channel.
5. Check whether a white noise machine or fan in the baby's room is close to the camera's microphone and consider moving it slightly farther away.
6. Wipe the microphone grille gently to check for dust blocking the sound pickup.
7. Reset both units to factory settings and re-pair them if static continues on all channels and volumes.

Tools and parts

• None typically required

When to call a pro

If static persists after ruling out interference, distance, and battery, and the unit is still under warranty, contact the manufacturer for a replacement.

Safety