This looks interesting. It's an LED torch with 3 position acoustic sensor, so it will switch itself on if you clap your hands or cough or fart or whatever. For under a fiver I can see it being handy hanging from the hammock ridge line, or easy to find in a dark tent, or when you drop it on your way back to your tent after a night round the camp fire and your night vision is shot to hell.
Eric
Eric