【EMERGENCY SAFETY ALARM】For solo hikers and late-night commuters, a quick double-click activates the built-in high-decibel acoustic buzzer alarm combined with a front flashing strobe light, providing immediate safety signals during critical outdoor emergencies. 【HANDS-FREE LIGHTING】Designed for mechanics and night runners, this grey 19g light clips onto cap brims or pockets. It allows hands-free car maintenance, ensuring clear visibility in any tight space. 【QUICK USB CHARGING】Powered by a built-in high-capacity lithium battery, the device features a fast USB charging port. It quickly recharges with any standard power outlet, keeping you prepared for any sudden darkness or roadside fixes. 【VERSATILE COB MODES】Experience 4 customized settings: low light, strong beam, strobe, and alarm flash. Equipped with a bright COB source, it offers 3 to 4 hours of continuous illumination for reliable, long-lasting performance. 【COMPACT PORTABILITY】Weighing only 19g, this lightweight utility keychain tool easily attaches to your backpack, belt loop, or keyring. Its ultra-compact profile ensures effortless carrying without adding bulk to your daily gear. Package list: 1x Keychain Flashlight 1x USB Charging Cable