Handheld RFID ID Card Copier: 1. ADVANTAGE: RFID reader with LED lights and buzzer indicators. Works completely standalone without laptop or other PC device. 2. SUPPORTED WORKING FREQUENCY: 125KHz, 250KHz, 375KHz, 500KHz; Can be used to copy various ID cards such as access cards, security cards, parking cards. 3. INSTRUCTIONS: Simply press the button to read an existing RFID card. Then press another button to write or program your RFID card. 4. Compatible with systems including Windows 98, ME, NT, XP, Linux, etc. Writable 125kHz RFID Key: 1. Note: These cannot be programmed directly into RFID locks. Data must be written using a 125kHz RFID card writer. These are blank tags with no pre-loaded data. 2. Frequency: 125kHz; Sensing Distance: 2.5 to 10 cm (1 to 4 inches); Data Retention: Up to 10 years. 3. Writable and Rewritable: Can be erased and rewritten up to 100,000 times. Ideal for creating new or backup tags when used with a 125kHz RFID card writer/copier. 4. Chip Type: ATMEL T5577 (compatible with other universal 125kHz tags). 125kHz RFID Proximity Smart Card: 1. Standard 125kHz ID card; Read-only, not programmable. 2. Not compatible with HID systems. 3. Designed to work with standard ID access devices or ID readers. 4. Does not support encrypted formats. Please note these RFID cards are not compatible with UHF readers or encrypted systems such as HID, Indala, Cobra, APCiK, Paradox, Radio, etc. 5. Pre-programmed with a unique 18-digit ID number on each card. (First 10 digits represent the code, last 8 digits are the Wiegand code). Color: As shown Material: ABS + Plastic Package Contents: 1 x Handheld RFID ID Card Reader (2 AAA batteries not included) 10 x Writable 125kHz RFID Key 10 x 125kHz RFID Proximity Smart Card Note: The package includes only the items listed above. Other products are not included. Light reflection and differences in display screens may cause the color of the item to appear slightly different from the actual product. Measurement allows an error of +/- 1-3 cm. Please allow slight variations due to manual measurement. Color may vary slightly depending on monitor settings.