1、Made of high quality ABS material, the product is waterproof, resistant to falling, it is reliable. 2、Small and portable, it can be hung on a shoulder bag or a backpack. 3、With a high volume of 125-128dB, people around can hear the alarm and effectively deter the perpetrators. 4、Equipped with LED light for emergency lighting. With two ways to turn it on, a switch or a button. 5、It is suitable for women, children, elder and people who need to work at night, such as nurses, workers. Features: Made of high quality ABS material, the product is waterproof, resistant to falling, it is reliable. Small and portable, it can be hung on a shoulder bag or a backpack. With a high volume of 125-128dB, people around can hear the alarm and effectively deter the perpetrators. Equipped with LED light for emergency lighting. With two ways to turn it on, a switch or a button. It is suitable for women, children, elder and people who need to work at night, such as nurses, workers. Specification: Condition: 100% Brand New Material: ABS Color: Blue Size: 6.6 * 3.5 * 2.5cm/2.6 * 1.4 * 1in Battery: 2 * "AAA" batteries Package Weight: Approx. 70g/2.5oz Package List: 1 * Alarm 1 * User Manual Note: 1. Please allow 0-1 inch error due to manual measurement, thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.