Sir Francis Drake took a snare drum with him as he circumnavigated the world and into battle. Before he died, he ordered the drum be taken to Buckland Abbey and said that if England were ever in danger, beating the drum would summon him to defend the country. The document provides a design brief to create a wearable emergency notification device for elderly users based on the legend of Drake's Drum, with requirements that it is wearable but not intrusive, has a manufacturing budget up to £40, and will be injection molded for mass production.