Signalling and Listening Devices for Use in Times of Emergency
An emergency is not a good time to lose all contact with the outside world. A reliable radio will allow you to keep informed and to hear what may be happening. A cell phone kept charged with appropriate charging devices can enable you to maintain contact with loved ones and emergency workers. A simple whistle or similar signalling device can be an effective way of both alerting and directing searchers to your location.
Such devices need not be heavy or cumbersome. Choose the one or ones that you feel would best meet your needs should you find yourself facing some sort of emergency situation.