... label source label GF4040EAntenna Size(MDxTD): 40x40mm (1.6"x1.6”)Resonance Frequency: 8.2MHz(±4%)Average Effective Signal Volume: 1500 cm³ ... without altering the products image and appearance (concealed protection)6.Faster through-out at POS due to excellent sensitivity strengthsource ... label ,garment label , ticket label,clothing label,clothing tag,8.2mhz label,eas system,rf system,rf cn,EAS source ...