T5577/EM4305 are all ID-125KHZ frequency, and the card is empty when leaving the , it can be read after writing, be aware.If the device cannot be connected, do not put the battery when connecting to the computerThis machine only supports 125khz, 250khz, 375khz, 500khz, 625khz, 750khz, 875khz, 1M, -125khz, 13.56mhz (ic mode) read and copy, supports most IC encryption card decryption ( not all), does not support Copy CUID and FUID chip cards, do not support cards with power supplyModel Number: CDType: ICInterface: USBcolor:As shownMaterial:ABSPackage Contents:1 x ID/IC card duplication machine1 x USB cableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.