Description: Just press it to make a sound, which is fast and convenient. The bottle is small and easy to carry. Due to its special structure, a loud sound is produced by compressing air. Push the handle to make a loud sound. The bottle is made of high-quality steel and the speaker is made of resin. Product length is 12.3 cm, width is 3.5 cm, and height is 4.3 cm. Suitable for game competitions, rowing competitions, sea rescue, opening ceremonies, dragon boat competitions, track and field sports, hiking, cycling and other scenes. Product Name: Loud Speaker Material: Steel, Resin Color: Blue Pronunciation: About 100 dB Sound Transmission Range: About 50 Meter Features: Handheld, small, easy to carry Dimensional details: 123mm x 35mm x 43mm/4.84 inches x 1.38 inches x 1.69 inches (approx.). Instructions for use: Keep the bottle upright before use, tighten the horn head and press the top button, the horn will sound immediately. Package includes: 1 loud speaker Note: 1. Please allow some errors due to manual measurement. Please make sure you don't mind before bidding. 2. Due to different monitors, colors may vary, please understand. Hello, please pay attention to your shipping address when purchasing products. If your delivery information (such as name, street, house number, doorbell/box without name, etc.) is incorrect, the order will not be delivered correctly. )