Product Description  This smart RFID key fob can also be used in a wide range of RFID key access control applications, such as hospitals, shared residences, shops, government offices, etc. RFIDType Contactless Read & WriteOperating Frequency 125KHz or 13.56MHz Compliance       LF - EM4200, EM4100, EM4102, EM4305, EM4001, T5577, Hitag1, Hitag2, Hitag S, Hitag-u Advanced, TK4100, GK4100, others upon request   HF - I-CODE (ISO 15693-3), Mifare 1K Classic (Mifare 1K S50), Mifare 1K EV1, Mifare 4K S70, Mifare 4K EV1, Mifare S20, Mifare Ultralight, Mifare Ultralight EV1, Ultralight C, Mifare DesFire 2K / 4K / 8K, Mifare plus 2K / 4K / 8K, Tag-it™ HF-I (ISO 15693-3), SmartMX, others upon request  NFC-NTag210, NTag213, NTag215, Ultralight ULT EV1, Ultralight-C, NTag216, NTag203, Sony FeliCa Lite-S, ST25TA02K, others upon request EnvironmentOperating Temp  -10º C to +50º CStorage Temp  -20º C to +70º CPhysical CharacteristicsDimension 40mm*32mm, thickness:4mmStandard Colour Light PurpleHousing Material ABSPrinting Printable with silkscreen (no more than 2 colors); A customized logo can be printed on the tag We can design and develop RFID tags and RFID readers in different sizes and different shapes for your different requirements. For more info about RFID products please kindly visit our website china-rfid.en.made-in-china.com or mail to us     , our sales will contact you as soon as possible.