Features:-Multifunctional design, equipped with lighter and flashlight, electric shock device.-The shell is made of space aluminum and uses aluminum oxide coating technology, which is wear-resistant and fall-resistant.-Built-in 200mAh battery, which can be easily charged with a computer, adapter, or power bank. (Note: do not slide when charging to ensure normal charging process.)-Equipped with an anti-accidental touch switch to prevent accidental opening, making it safer to use.-Lightweight and small, it comes with a hanging loop for use with a key chain or lanyard, then easily slips into your pocket or purse.How to use:1. It should be fully charged for at least 2-4 hours before use. Plug the USB interface into the computer, power bank, mobile phone charger.