Rechargeable Type-C Anker Alarm Made with a rechargeable lithium battery instead of a button cell battery, recognizing the Type-C connector from the USB port and connecting to your phone body with a Type-C charging cable. Easy to Use/Carry Comes with loops for easy attachment to any of your belongings, such as a bag, belt, jacket, keychain, etc. Self-Defense Personal integrated keychain protects your safety; whenever you notice something, select the pin above, and the loud 130db sound and flashing light will make you heard. LED Emergency Alarm Light The continuous flashlight attracts the attention of others; open the aphasia channel through the brighter and brighter flashlight. Suitable for Everyone Wide range of uses and versatility. Perfect for students, children, seniors, women, patients, people with disabilities, night walkers, and everyone else. Specifications: Material: ABS Battery: 3.7v 130mah Alarm Time: 40 minutes Waterproof: ip66 Product Size: 6.5 * 2.5 * 1.2cm LED Light: F8 1W 100 Lumen