RFID Handheld 125khz Key fob Smart Reader Writer Copier with 10pcs Writable T5577 Key Cards
A compact, battery-powered handheld RFID 125kHz key fob reader/writer kit built around T5577 cards. It can be fast for compatible EM4100/EM4305/TK4100 style tags, but success depends heavily on tag type, and the feedback on copy confirmation can feel unclear.