... Item No.: GSR-833 ( security tags for jewelry )Custom Jewelry Hard Tags for anti-theft usedFrequency:8.2Mhz/58KhzDimension ... jewellery tag, eas rf jewellery tag,eas am jewellery tag,custom jewelry tags.Grillstone Electronics Technology (HK) limited, largest ... grillstone rich experience on jewellery hard tag manufacture. Eas Custom Jewelry Products Mainly used for protect Jewelry shop, supermarket ...