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Title: Effective, Cheap and Easy to Use!
Review: I bought several of these and they are WONDERFUL. I use them when my husband travels and they are easy enough for my elderly mother to use and they have given her SO much peace of mind since she lives alone. I also purchased them for my college-aged daughters. One uses it in her dorm and the other uses hers in her apartment. They are very loud and an intruder would have a hard time turning them off quickly. I HIGHLY recommend these as a low-cost easy to use security device!
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