Our monitors should only be used with Fisher-Price wall adapters to ensure the safety of the monitor. 

Adapters should only be replaced with an original Fisher-Price wall adapter.  If you need to purchase an adapter, please visit our online store. 

There is signal interference due to other baby monitors on the same channel or as a result of cordless phone use. 

Change the channel switches on both transmitter and receiver to eliminate the source of interference. 

Remember that both units must be on the same channel.  If the problem persists, you may need to consider purchasing a monitor on a different frequency.