Security Alarm [New Upgrade Dual Mode Activation] Waterproof, 130 Decibel Loud Volume, 500+ Days Ultra-Long Standby, Environmentally Friendly Resin Integrated Molding Outer Shell for More Robust Security Goods, USB Charging Compatible, All Generations for Children, Women, Students, Elderly Self-Defense Goods [Blue 1 Piece] Brand New 130-decibel high-pitched security alarm, powerful deterrent. Featuring a 130-decibel sharp siren and LED strobe light, it instantly produces a loud sound and visual obstruction, effectively deterring potential threats. Ideal for students, women, and night shift workers to call for help at any time. Integrated non-toxic eco-resin outer shell, sturdy and drop-resistant. The integrated body made of high-strength, non-toxic, and harmless eco-resin weighs only 28g and is robust and durable, with excellent drop and abrasion resistance. This lightweight security item is easy to carry and can be used comfortably from daily use to outdoor activities. Recycle charging compatible, ultra-long standby. The built-in lithium battery can be charged for only 30 minutes via USB, with a standby time of up to 1 year. With a low battery warning, there is no need to replace the battery, and the alarm lasts for 90 minutes, and the LED stays on for 3 hours, making it an eco-friendly and convenient item. Two activation modes, multi-functional LED light. Quickly pull the pin to immediately sound the alarm, or press the button twice in your pocket to activate it covertly. The high-brightness LED light supports constant lighting and burst flashing, illuminating the way in the dark and stimulating the eyes in an emergency to identify the location, making it a self-defense item.