Portable Wristband Anti-Lost Alarm for Prevent Children from Missing,2 Functions(Alarming&Searching)

What is it?
Prevention reminder is aimed at kids specially developed production. It consists of two parts: the transmitter and the receiver. It has alarm function and search function for selective.

Specifications:
Battery for transmitter:CR2032(inclouded)
Battery for receiver:AAA battery(not included)
Working range:0~20 meters(open space)
Frequency:433MHz
Sound:80dB
Working temperature:-5~70℃

How to use?
1.starting up
Turn on the transmitter，indicator light flashes.Turn on the receiver and it issued a "beep" sound, then issued a "beep, beep" twice finish learning sound.It means they has been synchronized.They are at work.
2.Alarm function
When both the distance more than you to set the distance, the receiver will whistle alarm. When the distance of the two machines into the fortification range, the receiver will stop the alarm.
3.Search function
After the transmitter alarmed,you can switch to search function and the transmitter issue" beep".Move the receiver,when the two machine is closed,the receiver issue" beep" more frequently.

Package including:
Transmitter *1
Receiver *1
Key*2
CR2032 Battery*1

Cautions:
With obstacles and radio interference, the working distance will shorten.
Range of recommended settings:0~6meters.