Proximity Smart CardsChip: MF1S50Operating Frequency: 13.56MHzStorage Capacity: 1K Byet,16 districts,each district two passwordsRead Distance: 8-10cmCard Life: More than 100 000 timesChip: MF1S50Operating Frequency: 13.56MHzStorage Capacity: 1K Byet,16 districts,each district two passwordsRead Distance: 8-10cmCard Life: More than 100 000 timesData Retention Time: 10 yearsTypical Applications: patrol,attendance, access control systems,business card, bus card,highwayProtocol: ISO14443AModel Number: 100CardICcolor:WhiteMaterial:PVCsize:. 85.5 x 54 x 0.84mmPackage Contents:100 x cardOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.