Power interface: Type-C USB Power input: DC5V/500Ma Radio frequency: 13.56 Mhz Support Card type: S50 Card Encoder for Electronic RFID Door Lock System Support 13.56 Mhz Smart Card For TTlock Hotel System Bluetooth Smart Door Lock This is the newest card encoder in this store, especially for TTlock / TT Hotel / TT Renting APP smart locks(specific model). With this encoder, you can manage to your Hotel or Apartment Homestay. Colour:Black Material:plastic Package Contents: 1 x Smart Card Encoder 3 x Card 1 x USB cable Only 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.