1.Bi-directional monitoring of anti-lost 2.Super sound alarm 3.Rechargeable battery Electronic Mini Anti-theft Alarm H-199Anti-stole machine functions1) Master and supplementary card can work in pair,one to one or one to many,and they will send alarm among each other.2) Master card will be used by main,supplemetary card will be used on the protected *object(children,pets,luggage and so on) 3) ...
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