Other monitors have a vibrating alert on the receiver making it particularly useful for people with hearing difficulties.

The vibrating alert is produced by a small electric motor connected to an eccentric (unbalanced) weight.

A vibrating alert is a feature of communications devices to notify the user of an incoming connection.

When mobile phones and pagers vibrate, the vibrating alert is produced by a small component that is built into the phone or pager.

Most early designs of haptic feedback use electromagnetic technologies such as vibratory motors, like a vibrating alert in a cell phone or a voice coil in a speaker, where a central mass is moved by an applied magnetic field.