[Security buzzer that easily blows by holding the main body tightly for 1 second] ・Easy blowing & accidental operation prevention design In an emergency, just hold the main unit and press the alarm button switch for 1 second to blow. When stopping, press and hold for 3 seconds to stop. It is very effective for suspicious people who don't know how to stop. A new design that is usually difficult to touch with switches. ・Low battery notification function When the battery is low, the LED light will flash to let you know when it's time to replace it. ・High-level life waterproof (IPX5) Waterproof performance IPX5 for peace of mind even in guerrilla heavy rain. *A level where there is no harmful effect on the jet water ・Comes with a high-brightness wide-angle reflective seal that reflects light and is safe and secure even on the road at night. ・Comes with a special fixing belt that can be securely fixed to the school bag. ・Equipped with an irradiated light that can brighten up your hands. ・Loud volume 90db ・Power supply: Coin cell type (CR2032×2) ・Accessories: 2 test coin batteries (CR2032) included ・Size: W32.5×H84×D29mm (accessories not included) ・Weight: 42g (including battery) ・Material: Body = ABS, Hardware = Nickel Plating, Fixing Belt = Polyester, Reflective Seal = PVC ・Won the 2019 Kids Design Award ・Products that have passed safety performance