Why is my Wahl Chromado and/or Bravura Clipper "beeping" ?

The signal you are hearing coming from your Wahl Chromado/Bravura Clipper is the automatic sensor system. This allows you to be aware in advance when the blade set requires oiling or cleaning to promptly attend to it. 

After switching off the unit, it will emit an acoustic signal and the battery power indicator will flash for 2 minutes. You can stop the sound and light of the battery indicator by quickly turning the device on and off. Before using the unit again, we strongly recommend cleaning the clipper and oiling the blade set.