anti-lost child personal alarm

Feature of anti-lost and search function personal alarm: Anti lose alarm ,Which is one of smart product with two functions as anti lose and search , you can adjust the alarm distance form 1-20meter, example for your had set the alarm distance in 10 meter ,when the distance over25 meters between sender and receiver.it will give off 85dB alarm soundwith vibration.And also you can use this device to seach your lost products, when the lost product near you, this system will alarm , and you can shorten the scope by adjusting distance button , and find it. Specification: Sender: size:44(H)x28(W)x8(D)mm Weight:9.3g Battery:3v CR2.32 x 1 Receiver:size:60(H)x36(W)x15(D)mm Weight:35.5g Battery:1.5v AAA x1 Distance:0-20M Color:Black or white Life of battery: sender:3weeks(working in 8 hours per day) receiver:2month(Working in 8 hours per day ) Packing: blister package Packing Size:200(H)x80(W)x17(D)mm G.W:68.8g Carton size:525x325x390mm 200pcs/carton G.W14.5kg/carton Packing: