The adapter is designed to work with 125kHz and 134kHz transponders. The ability to manually switch modes of operation, as well as automatically (with implemented control from the script on pin18) Supports For Toyota 4C and 4D Chips Transponder. Colour:yellow Material:Plastic + Metal Package Contents: 1x RFID Adapter Only the above package content, other products are not included. Note: Light shooting 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.