This is a security alarm with an LED light to protect your precious child. The volume is unknown, but it might even be able to deter bears. ● Color: Blue Suitable for elementary school students. Teach your child how to use it and attach it to their backpack! ● Easy to use, so even children can easily handle it. ● Brand new, unused, and unopened. * Batteries: 3 LR44 button cell batteries included (for testing) * Size: Approximately 36x16x74mm * Material: ABS * Volume: 70-80