DescriptionMade of plastic and electronic compound material, easy to use. Mini size, portable design, build in battery design, all of that make you use it more freely.It is practical for the olders, children and girls when they have emergency.Feature- Color: White. - Material: Plastic. - Size: Approx. 13.2x3.5x1.7cm. - Working Voltage: 5V. - The emergency personal alarm can make a 130dB loud sound to draw people's attention. - It can effectively scare attackers in danger and seek people around for help. - It will be your good helper when you have troubles or need help. - Compact and lightweight, it can be attached on purse, bag, schoolbag, backpack, keys, belt loops, easy to carry. - Suitable for joggers, elderly, disabled, night workers or someone who live alone, especially for the women. - Simply pull down the switch to activate the hand held alarm, easy to use.