1. Supporting 10 Frequency: Supporting reading, copying and writing of 10 frequencies, including 125KHz, 250KHz, 375KHz, 500KHz, 625khz, 750kHz, 875KHz, 1000KHz, 13.56MHz ISO1443A/B, etc.2. Smart Reading: The card reader can read most 13.56MHz cards. Please ensure that the reader and writer is connected to the computer for this operation.3. Easy Operation: With high definition 2.8in full color screen and built in multi language. Also equipped with a USB interface that can directly connect to a computer.4. Power Supply: Supporting 4pcs AAA battery(not included) or USB power supply, so the NFC card copier is very convenient and flexible to operate.5. Wide Compatibility: Compatible with ISO 14443 A cards, EM cards, AWID cards, T5577 cards, Ntag 213 215 216, etc.Spec:Item Type: NFC Card CopierModel: 300CDMaterial: ABSRange: Up to 3km in open space. Power Supply: 4 x AAA battery, shipped without batteries. Supported Operating Systems:For Windows 98, ME, NT, 2000, XP, 2003, for Vista. For Windows XP x64,2003 x64, for Vista x64. For Linux. For OS X 10.5, for OS X 10.6. For WinCE 5.0, for Windows Embedded Compact. Features:1. High definition 2.8in color screen with clear display and built in multi language display. 2. ID and IC full hand voice broadcasting. 3. Supporting Read and Write Frequencies: 125KHz, 250KHz, 375KHz, 500KHz, 13.56MHz ISO1443A. 4. Supports Reading: EM4100 EM4200, UID card, Ultralight, Ntag203, for HID 1386 1326 1346. 5. Supporting Card Writing: For HID 138 1326 1346, T5577, EM4305, UID card. 6. The number can be entered directly with the number keys. 7. Powered by 4 x AAA battery or used in conjunction with USB power supply. How to Use:How to Copy A 125kHz Card: 1. Press the switch button. 2. Place the 125khz card on the back of the copier. The copier will display a disclaimer page. Press OK. 3. Place the business card on the back