The classic bell that can be shaken to alert nearby caregivers that one needs something. Seen in many movies and cartoons, now you can get one too. Just be careful, if used too often, it may become less effective at summoning help.
Advantages
- can alert nearby caregivers that one needs assistance
- simple to use
Disadvantages
- may not help attract attention if no one is nearby to hear the bell
- respondents tend to attend to the user demands more slowly as the bell is used more and more frequently