Descriptions: This product is a handheld 125KHz RFID card making machine, which can easily copy and write the 125KHz HID/ID card number. Therefore, you can get the same pair of HID and ID cards for more purposes, such as access control identification, attendance check, etc. Specifications: Battery power supply : 3 V ( 2 * AAA battery) (Batteries not included) Temperature: 20 50 Lifespan:15000 times Reading Distance: 0 6cm Size: 11.5cm*7cm*3cm/4.5*2.8*1.2in Package Weight: 106g/3.7oz Package List: 1 * RFID Handheld Copier (Batteries not included) 5 * Writable RFID Key Tags 1 * User Manual 3 volts 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.