3 in 1 multi-function emergency whistle3 function: whistle, thermometer, compass plastic whistle and nylon neck lanyardOn one side there is a compass, and the other is Celsius thermometerIt is very suitable for camping, clim, hiking and traveling.Specifications:Material: PlasticTemperature range: -20-50 degrees CelsiusWhistle Size: 50 x 33mm/1.96 x 1.29 inchNeck Lanyard length: approx. 40cm / approx. 15.74 inchWhistle color: Olive greenNote:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!Please allow 1-3mm measuring deviation due to manual measurement.Package Included:1 x Compass