This whistle is with 7-in-1 multifunction of whistle, magnifying glass, signal mirror, compass, thermometer, small container and white LED light. Portable and easy to carry with rope, will be a good assistant for your trip.

Description:

7 in1 multifuction : whistle, magnifying glass, signal mirror, compass, thermometer, small container and LED light
Portable and easy to carry with rope
A button switch for white LED light
Battery: 2 x CR2016 coin cell batteries (not included)
Can put small items with your details into container before trip for unexpected accident
Color: Army green