Made of high quality materials, practical, easy to operate and use, scope of application, the useful life is long. Characteristics: Nfc-pm3: Departmental data can be edited. Applicable to ic card. Frequency of reading and writing supported: 13.56 mhz (Iso 1443a/b)。 Card reader support: Mifare classic, ui-d, s50, s70. Writing card support: Mifare ui-d. Small portable non-contact card reader. You can decipher most card encryption. Analog telephone nfc. Nfc-pm5: Departmental data can be edited. Applicable to ic/id card. Frequency of reading and writing supported: 125khz, 250khz, 500khz, 375khz, 625khz, 750khz, 875khz, 1000khz, 13.56 mhz (Iso 1443a/b)。 Card reader support: Em4100/em4200, mifare classic, ui-d, s50, s70. Card writing support: T5577, em4305, mifare ui-d. Small portable non-contact card reader. You can decipher most card encryption. Analog telephone nfc. Specifications: Material: Abs Color: Black Type: Nfc-pm3, nfc-pm5 (Optional) Type of applicable card: Nfc-pm3: Ic Nfc-pm5: Ic + Id Frequency of reading and writing supported: Nfc-pm3: 13.56 mhz (Iso 1443a/b) Nfc-pm5: 125khz, 250khz, 500khz, 375khz, 625khz, 750khz, 875khz, 1000khz, 13.56 mhz (Iso 1443a/b) Card reader support: Nfc-pm3: Mifare classic, ui-d, s50, s70 Nfc-pm5: Em4100/em4200, mifare classic, ui-d, s50, s70 Card writing support: Nfc-pm3: Mifare ui-d Nfc-pm5: T5577, em4305, mifare ui-d Operating systems supported: Win98/me/nt/2000/xp/2003/vista, winxp x 64/2003x64/vista x 64, linux, mac10.5/10.6, wince5.0 Product size: 95x60 x 14mm/3.7x2.4x0.6in Product weight: 37 g/1.3 ounces Packaging size: 120x100 x 25mm/4.7x3.9x1.0 in Packing weight: 66 g/2.3 ounces Packing list: 1 x reader writers 1 x usb