Great siren defense keychain for everyone. Commonly used by the elderly to call for help when falling, feeling unsafe, physically threatened, medical emergencies, accidents or allergic reactions, etc. Our self-defense personal alarm siren with dual built-in speaker can be loud at 130 dB. It can attract attention when needed from hundreds of feet away, while scaring active attackers or stalkers.Also, its strobe light can flash gansters eyes when arlam starts, in addition to loud alarm, gansters will be frightened. The situations where we see personal security alarm used most commonly include school bull, emergency self-defense situations, burglaries, night running or walking the dog, etc. For women, girls, children and the elderly. Features: - Dual speakers with 130dB sound - be heard from hundreds of feet away. Frighten your attacker while simultaneously attracting help. - LED strobe light - flashes gansters eyes when alarm starts. - Easy to use - just pull the pin and the siren will swing and the storm light will flash. - Lightweight and portable alarm keychain: self-defense alarm can be attached to handbags, backpacks, keys, belt loops, suitcases, etc. It can also be carried on a plane, really convenient, suitable for students, joggers, the elderly, children, women, night workers, etc. Specification: Volume: 130 decibels Material: ABS Alarm time: 6 hours Size: 86*30*20mm Lighting time: 20 hours Colours: White, Black Battery Capacity: 120 mA Quantity delivered: 2 pieces Note: With battery inside, no need to charge and no need to put the battery, it can last about 25 minutes.