Flipo ALARM-TRAVGUARD Travel Guard Alarm [Electronics]

Feel much safer with this in my handbag!

I would give them 5 stars, but I purchased four from two vendors and two were functional, one had very weak sound, even after batteries were replaced, and one came with dead leaked batteries. The two that work, work very well. Sensitive, load, light. All I wanted in a mobile perimeter alarm. The three button cells powered them through a full week and are still going. Will be buying a dozen more for our bug out bags. I tried another brand that uses AA batteries and works equally well if not better, but it was four times larger. I would rather have four units I can place strategically, than one. Also if one dies I will still have three left. Make sure you buy from seller you can easily return to.