Personal alarm is the most recommended gift; for family members, girlfriends, friends who work nights or travel alone. 1. 140 dB decibel volume will immediately grab 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. Features: Alarm volume: Approx. 140 dB Material: ABS + Metal Voltage: 4.5 - 6 V Working current: 100 Ma Battery: LR44 (5 pieces) Daylight alarm: 90 minutes Intensity; Brightness: 80 Lumens Size: Approx. 2.76 X 1.77 X 0.98 Inches Color: Purple, Blue, Silver, Gold, Black Quantity: 5 pieces Safety alarm Suitable range: People of all ages Warm notes: 1. When the alarm sound becomes weak, remove the screws from the back cover 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, store it in a clean and dry place. Package included: 5 X Personal alarm 5 X User manual