DescriptionPersonal alarm is the most recommended gift for your family members, girlfriend, friends who work night shifts or travel alone. Safety alarm: 1. 140db decibel volume will immediately catch everyone's attention, even from a distance. 2. Perfect gift for elderly parents, women, children, joggers or anyone who walks alone. 3. The alarm helps you get out of a dangerous situation and scare away attackers when traveling outdoors. Specifications: Alarm volume: approx. 140 dB Material: ABS + metal Voltage: 4.5 - 6 V Working current: 100mA Battery: LR44 (5pcs) Alarm time: 90min Brightness: 80lumens Size: approx. 2.76 x 1.77 x 0.98 inches Color: purple, blue, silver, gold, black Quantity: 5 pieces safety alarms Suitable range: people of all ages Warm notes: 1. When the alarm sound becomes low, remove the screws from the back and replace the new batteries. 2. The alarm signal is very loud, do not place it near your ears. 3. This item is not completely waterproof, keep it in a clean and dry place.