Rfid Reader Writer Id Tag Copier T5577 Keychain. Specifications Function: This Rfid Identification Card is Used to Clone the 125 Advantages: Built-in Led Light and Independent Buzzer Indicator. Support Read / Write Frequency: 125 KHz Em4100 / Em410x Or Compatible Card / Tag Format. Widely Used: Can Be Used for Elevator Cards, Access Control Systems, Parking Cards, Induction Cards, Work Cards, Etc., or Home and Office Doors, Etc. This Machine Only Supports ID-125Khz Read and Copy, Encryption Card, Hid Card and Card with Power Supply Cannot Read and Copy . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.