Product Description Keep With You, No Losable! Features: 1.Prevent Children Or Pets Losing. 2.Prevent Purse Or Baggage Being Stolen. 3.Prevent Valuable Things Leaving Somewhere. 4.Environment Friendly, Without Radiation. 5.Search Function and Ring+Vibration 6.Steek, Compact, Easy to Carry 7.User can Freely Adjustsafe Distance Within a Wide Rang(0-25m, vary with the objects to be protected). Product functions Leaving alarm function When there are valuables being pilfered or lost in population-concentrated occasions such as passenger car, taxi, subway and etc, it will warn and cause guardian attention, having a function on preventing valuables from being pilfered or lost in advance Adjusting distance Adjust short distance or long distance according to service application(0--25m) Applied distance generally mentioned as one without wireless obstruction in circumference.It will have changes longer or shorter than applicable distance according to wireless obstruction factors in circumference or battery capacity. Alarm approaching function.Search function of the product Power ON/OFF function Receiver or transmitter has built-in power switch Operating instructions of the product Long distance alarm Turn on the switch of pickaback machine, of which signal lamp glitters and start to transmit signal;Place signal-sending transmitter at the side of master machine, move the switch of master machine to I, which sends out a cue tone of boot-strap, and then two cue tone of Di Di, here master machine learn the coding of current pickaback machine, signal lamp changes from on to flashes, which represents that long distance learning is finished.Place pickabak machine on protg or protected goods, master machine is carried personally.When protg or protected goods are eight plus 1.5 meters away from master machine, which sends out continuous alarms of Di Di Di Di...At this moment, signal lamp always light, and motor librates. Short distance alarm Turn on the switch of pickaback machine, of which signal lamp glitters and start to transmit signal;Place signal-sending transmitter at the side of master machine, move the switch of master machine to S, which sends out a cue tone of boot-strap, and then two cue tone of Di Di, here master