Features: Compass for positioning abstract direction immediately. Super durable construction ensures proper functioning when you need it most while boating or for any other purposes. Super loud whistle provides audible protection for mariners, sporting events and personal safety to ensure that you will be heard when you need assistance. Thermometer for measuring the current temperature of your location, with Celsius degree and fahrenheit degree display, easy to read. Hidden magnifier with stretchable design, whistle can help you when you are in danger or in emergency. Specification: Type: Survival Whistle Material: ABS Applications: Outdoor Travel Sports Entertainment Camping Hiking Features: Outdoor Survival Whistle, Multifunction 7 in1 Keychain, Compass Magnifier Thermometer, Sports Outdoor Gadgets Dimension: app.10.8x4.5x2.5cm/4.25x1.77x0.98in Color: Black Quantity: 1 Pc Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Pc x Survival Whistle