inputs.text: sounds great maybe not - first purchased itehem amazon realizing amazon fully supports sales back thehem involved import electronics last job never good experience especially low end user itehems itehem arrived quickly even though christmas rush opened package everything described picked hand held transmitter installed new set batteries powered attehempted program four tag sensors started old feelings hand held unit would not power pushed startup button without keep pushing button repeatedly anyway manage get four regular mini tags programed personalized description since going christmas present went back box christmas arrived opened box unit would not power without numerous attehempts tried dehemonstrate key alarms attehempted set thehem two would not work needless say went back amazon must say best experience dealing itehem thing one must rehemehember somewhere miss place keys unless transmitter luck seeing side itehem would recommend key alarms transmit one another without master transmitter