NFC tags are self-adhesive stickers that can be programmed with the help of an app. Various routine tasks can be stored， which are carried out by holding your device in front of the sticker. These stickers can be re-written up to 100，000 times.Description:Chip type: NXP NTAG216Operating frequency: 13.56MHzMemory size: 888bytesRead range: 0-3cm / 0-1.18inRead/write times: 100，000 timesOperating temperatures: -40 to +65 degrees CelsiusCompatibility: for Samsung Galaxy S5/S4/Note3/Note2， NOKIA Lumia920/820/720/620， BLACKBERRY Z10/Q10， LG Nexus4/Nexus5， HTC one， Sony Xperia， and all NFC enabled mobile phonesSticker size: Approx. 3x3cmNFC chip material: PET + etching antennaSticker material: Waterproof pp synthetic paperColor: Green， Red， Blue， White， Black， YellowPackage Includes:6x NFC Smart Tags Stickers