ChineOn 3in1 Emergency Gear Camping Hiking Survival SOS Whistle Compass Thermometer w/ Lanyard This Combo Pack Includes: 3* Whistle 3 in 1 multi-function :whistle, themometer, compass On one side there is a compass, and the other is Celsius thermometer Temperature range: -20~50 degrees Celsius Neck Lanyard length: approx. 42.5cm / approx. 16.7in