anti-theft alarm

Introduction for anti-theft alarm Wear the transmitter (smaller one) on the child or the protege, and wear the receiver on the parent or the owner. Set a distance by the wheel, when the child leaves the parent more than the set distance, the receiver will sound alarm and vibrate to remind the owner.The working longest distance can reach 30-40 meters when there's no obstacle. Distance is adjustable. One-one matching, no interrupt between two units. Frequency:433.92MHZ. Battery:1XAAAforthekeychain,1xcr2032forthetransmitter. Material:ABSPlastic,environmental,colorisoptional; Dimensionsforreceiver:6cm×3.6cm×1.5cm. Dimensionsfortransmitter:0.7cm(thickness)x2.4cm(diameter). logo:silkprintisforfree. DIY:allourreceiversandtransmittersareworkablewitheachother,soyoucanarrangetheminpairsbyyourself,chooseonemodelsreceiverandanothermodelstransmitterisacceptable; MOQ:1000pcs Samplefee:onesampleisforfreeifthebuyertaketheshippingcost; Sampletime:2-5days Deliverytime:10-30days Termsofpayment:T/T,L/C,WesternUnion Packing:Blisterandcardpackingfornormalpackage,youcanchooseotherpackagestyleifyoulike; Shipping:DHLUPSFEDEXTNT Freelysetthedistancefrom0-25meters Transmittercurrent:1mA Receivercurrent:3mA Warningcurrent:70mA