1、7-in-1 whistle includes functions: emergency whistle, thermometer, compass, LED light, magnifying glass reflective signal mirror, sealed container. 2、Made of high-strength ABS plastic, built to last and withstand the rigors of outdoor environment. 3、Attached lanyard makes it convenient to carry. 4、Suitable for camping, hiking, backpacking, Cycle, boating, kayaking, trekking, and other outdoor activities. Features: 7-in-1 whistle includes functions: emergency whistle, thermometer, compass, LED light, magnifying glass reflective signal mirror, sealed container. Made of high-strength ABS plastic, built to last and withstand the rigors of outdoor environment. Attached lanyard makes it convenient to carry. Suitable for camping, hiking, backpacking, Cycle, boating, kayaking, trekking, and other outdoor activities. Specifications: Material: ABS Size: 9.7 * 2.8cm / 3.8 * 1.1in Weight: 40g / 1.4oz Package List: 1 * Whistle 1 * Whistle Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.