Product review (1 stars): DO NOT BUY! I bought 3 of these and ...
DO NOT BUY! I bought 3 of these and they all do not work as it should. They do not alert when they should. They stop working when the battery is only 50%. I set the alert to notify me when the battery goes below 70% and it still didn't give me the alert. After going back and forth with customer service for over a month, still no solution.