Characteristics: 1. Miniature, ergonomic, easy do carry. 2. Only two "read" and "write" buttons, easy to operate. 3. All types of identification cards (EM4100) can be copied using this RFID copier. 4. Thanks to the use of an advanced system, the integration of the product is higher, more stable and reliable. 5. Excellent program algorithm and circuit design reduce power consumption and extend battery life (battery not included). 6. Widely used in communities, schools, offices and other places where access control is required. Technical data: Frequency: 125 kHz Single frequency copier do read and write. Supports readout system: TK4100/EM4100/EM4200/TK4100-D. Supports write chip: T5577/EM4305/5200/8265/8268/8800 etc. Number of copies: >20 000 times Size: approx. 11,5 x 7 x 3 cm / 4,6 x 2,8 x 1,2 inches Weight: approx. 162g List of packages: 1 x RFID copier without batteries 6 x Writeable Keychains 6 Writable Cards (EM4305) 1 x User Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-dadangjia