Features: 130dB InstantS Alarm & Strobe Light: Pull the rings to-trigger a powerful 130dB alarm with flashing strobe light—audible from up to 200 meters at night for immediate attention and deterrence. Dual-Alert System: Blasts piercing sound + high-intensitys strobe light ) for maximum impact. Keychain-Friendly Design: Small size, its in pockets or clipped to bags/belts with a sturdy carabiners. Compact & Always Within Reaching: Small enough to fit in any pocket, purse, or attach to a keychain, travels with you effortlessly, ensuring safety is always by your side. Immediate Safety When You Need It Most: The delivers instants audible deterrence whether you are jogging alone, walking to your car after dark, or navigating unfamiliar surroundings—help is always within reaching. Notice: Please allow 1-3cm deviation due to manual measurement Actual color may be slightly different from the image due to different light effect Description: Material: Environmentally friendly ABS Output: 4.5V Battery: LR44*3pcs Alarm decibel: 130dB Package List: 1X Keychain Personal-Safety Alarm