Description Ultra-Loud Alarm & Flashing Light: Features a built-in high-brightness strobe light (flashes continuously for over 1 hour) and an ultra-loud 130dB alarm to disorient attackers and quickly attract attentionideal for nighttime or low-light situations. Multiple Functions: Supports virtual incoming calls and location notifications. Double-press the alarm to trigger a fake call on your phone. When paired with a SwitchBot Hub, it also enables a home arrival reminder. Keychain Design: More than just an alarmit can also function as a door key when used with SwitchBot Lock and Keypad, making it a versatile and practical addition to your daily life. IP65 Waterproof & Dustproof: Designed for all-weather reliability. Works flawlessly in rain, humid environments, or accidental splashes. Great Gift Idea: Compact, lightweight, and available in multiple colors. Easily attaches to keychains, backpacks, or beltsperfect for women, students, and kids who value safety on the go. Product Information and Specs Size67 x 33 x 15 mmWeight: 35g Warranty SwitchBot Safety Alarm comes with a 2-year warranty.