One Finger Emergency Alarm: Press the switch once to turn on the alarm, press again to turn off the alarm, which is very easy to use. Especially for the elder heart disease, women Personal Alarms and children. Loud Siren Sound: Siren song can draw people"s attention even at another room, audible up to 150 meters -anti-theft, tracker, defense , knife, whistle. Long Standby Battery Lifetime: Attractive flashlight in the dark. Battery last up to 365 days before replacing them. The alarm with two red emergency LED flashlights which will blink off and draw around people"s attention. perfect Gift: Emergencies can happen at any time. The potential hazards can bring nervous emotion to the elderly, kids, women. The best action is merely pressing one with one finger under the emergency that occurred. The two red flashlights and siren sound will draw people"s attention, that"s all you need to do. Light and Soft: Made of breathable material, the alarm features no stuffy, no sweat, and can be tied to the arm and wrist easily. Particularly suitable for running, hiking, and other outdoor activities. Excellent security option for all age groups in your family. colour: white Material: ABS size: 55x35mm Package Contents: 1 x Personal Alarm Siren Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.