Welcome to our store! Independent operation, no need to connect to a computer/PC. Built-in transceiver antenna, high sensitivity, and fast read and write speed. Handheld shape design, 2 buttons for easy operation, convenient to use. Built-in individual LED lights and buzzer indicator to signal the procedure of your operation. Supports writing chips: T5577/EM4305/5200/8265/8268/8800. Supports reading chips: TK4100/EM4100/EM4200/TK4100-D. This product is a handheld 125KHz RFID card copier, which can easily write the 125KHz ID card number. Therefore, you can get the same pair of ID cards for more purposes, such as access control identification, attendance check, etc. Features: Independent operation, no need to connect to a computer/PC. Built-in transceiver antenna, high sensitivity, and fast read and write speed. Handheld shape design, 2 buttons for easy operation, convenient to use. Built-in individual LED lights and buzzer indicator to signal the procedure of your operation. Supports writing chips: T5577/EM4305/5200/8265/8268/8800. Supports reading chips: TK4100/EM4100/EM4200/TK4100-D. Specifications: Battery power supply: 3 V (2 * AAA battery) (Batteries not included) Temperature: -20-50 ℃ Lifespan: 15,000 times Reading distance: 0 - 6 cm 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 fobs 1 * User manual Note: Please note that this type of chip card is a blank card when it leaves the factory and must be written before it can be read.