Still does not have family elder brother to help me open the door, I asked my brother he is how I got home, my brother told me he’s inside the room to see me, listen to the elder brother of the things I said it’s no wonder, and home to install the door open with a passive rfid is now quite convenient, listen to the elder brother of the things I said this passive rfid now has applications in many fields, can our life brought a lot of convenience, brother listen to me about things said are applied to the inside of his car, say it’s really very convenient, brought a lot of convenience to our life?