This photograph show a personal locator beacon (PLB) held in a person's left hand.  The orange PLB is about the size of a pack of cigarettes. (Survival Factors presentation)
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/68618467@N03">National Transportation Safety Board</a>
2017-12-12 11:16
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/ntsb/38973403002/">EL FARO Board Meeting</a>