Available in four colors: blue, white, pink, and black. [Security Alarm with a Loud Buzzer Sound to Protect Yourself] When you activate a security alarm, it's an emergency. You want the sound to travel as far as possible, so a louder sound is better, right? This compact security alarm emits a loud 130dB alarm sound, reliably alerting others to danger in emergencies. [USB Rechargeable, Eliminating Troublesome Battery Changes] This reusable USB rechargeable security alarm is not only eco-friendly and economical but also eliminates the hassle of battery changes. You can rest assured that it won't run out of battery when you need it most. It charges in just 30 minutes and can sound for 50 minutes on a full charge! [IP44 Water Resistance for Peace of Mind, Even on Rainy Days] With IP44 water resistance, the risk of damage from raindrops falling from an umbrella is reduced. Its simple and stylish design makes it suitable for children and adults alike. [Bright LED Light for Nighttime Use] A wide LED light is located at the bottom of the security alarm, allowing it to be used as a flashlight. It can alert others to danger with both sound and light. It's also useful for working in dark places or when retrieving your house keys. The light has two modes: steady and flashing. [Two Easy Ways to Operate] How to activate the alarm (1): Pull the pin to sound the loud buzzer. To turn it off, reinsert the pin. How to activate the alarm (2): Press the SOS button twice to sound the buzzer. To turn it off, press and hold the SOS button.