Specification:
With Noctilucent Display or Not: No.
Waterproof / Water-Resistant: Yes.
Use: Pointing Guide.
Size: 50 x 33mm.
Shockproof or Not: No.
Outdoor Activity: Mountain-climbing.
Dial Display: Pointer.
Case Material: Other.
Carrying Mode: Hanging Ring Type.
3 in 1: compass, thermometer, whistle.
Material: Plastic.
Temperature range: -20-50 degrees Celsius.
Whistle Size: 50 x 33mm/1.96 x 1.29 inch.
Neck Lanyard length: approx. 40cm / approx. 15.74 inch.
Whistle color: Olive green.

Features:
100% brand new with high quality.
3 in 1 multi-function emergency whistle.
3 function: whistle, thermometer, compass.
Durable plastic whistle and nylon neck lanyard.
On one side there is a compass, and the other is Celsius thermometer.

Package Included:
1*pc Emergency Survival Gear Whistle