Our personal keychain alarm siren is a compact and simple device that can alert people around you that you are in danger. It is easy to use by everyone and, if triggered, will emit loud noises and intense light that will draw attention to you and scare thieves or bullies away. This personal alarm protection is a must-have for women, kids, and seniors. Specifications: Material: ABS Size: Approx. 5.3 x 1.4 inch Optional Color: Pink, White, Blue Power Source: Battery Powered Sound Decibel: 130dB Alarm Time: 50 minutes Charging Time: 30 minutes Package Included: 1 x Personal Keychain Alarm Siren 1 x USB Cable Product Features: USB Rechargeable This practical personal protection alarm keychain is easy to recharge using the simple USB cable connected to your laptop or power bank. That means no more time and money wasted on buying batteries. The charging time is only 30 minutes. Easy to Use The alarm keychain is easy to use and can be operated without training or skills; Simply pull out the contact pin or press the SOS button twice quickly and the personal alarm will sound; After being out of danger, the contact pin can be inserted or long press the SOS button to stop the alarm. It will emit a 130 dB sound and bright light that are easy to perceive by anyone around. Compact and Portable The safety personal alarms are made of ABS material and waterproof design, which is durable to use. Our self alarm keychain measures only 5.3 x 1.4-inch. It is lightweight, compact, and very easy to carry in your bag or wallet. It comes with a practical keychain so you can connect it to your keys or belt. Designed for You This stunning alarm protection is a must-have for women, kids, and seniors. Whether you are scared of being left alone at home, being bullied, robbed, or simply walking down the street at night, this protection safety device is a great option that can make you feel safer and ensure security protection at the same time. Warm Note: 1. Due to the different monitor and light effect, the actual color may be a little different from the pictures. 2. Since the size above is measured by hand, the size of the actual item you received could be slight different from the size above.