\r\nthis personal anti-losing alarm adapts macro-computer control technology with multi-\r\ncoding. it protects valuable articles (or human being ) and anti-theft by compounding of\r\n\r\nreceiver and transmitter. it becomes your first choosing for anti-losing. so convenient, it\r\n\r\nis used for mobile, wallet, luggage, package,childen,key and so on . good looking and\r\n\r\ngreen environment protection.\r\n \r\n