Before we dive in let's examine the RFID Copier and Programmer - a handheld device that offers 125KHz RFID Duplicator Copier, RFID Reader Writer, 13.56MHz USB Cloner NFC Programmer, and EM4305/T5577 UID capabilities.
With a full decode function and automatic stepless full-frequency sweep this device is designed to break IC card encryption and locate offset frequency cards.

One of the standout features of the RFID Copier and Programmer is its built-in password database and upgrade procedures which give it unlimited potential. It supports ID/IC Smart Cards in mainland China, Taiwan, Europe, and Southeast Asia. Additionally its HD 3.2-inch full-color screen offers clear display and voice prompts for the best user experience. Measuring at 180*68*29mm in size, this device runs on four AAA batteries (not included) and has a working current of 200mA and a standby current of 50mA.

The biggest advantage of this device is its versatility in reading and writing various types of RFID cards. However it may not be compatible with all types of cards, as some customers have reported issues with reading blank cards. Additionally, while the device may be capable of copying basic cards, it may not work with more advanced models.

To put it simply the RFID Copier and Programmer is a quality product that performs as advertised. However, it may have limitations depending on the specific type of card being used.

All things considered if you're in the market for a handheld RFID copier and programmer with a range of capabilities, this device may be worth considering. While it may not be perfect for all use cases, its versatility and potential make it a solid investment for those in need of its services.