I found this unique hands-free which is supported by GPS navigation system. It is made for Human Aid program specially blind people. The operation is very simple, you only have to speak an address through the built-in microphone via audible information. And than the GPS system would direct you to the destination.

All of your speech will be recognized with this hands-free GPS. It because of this GPS is featured by built-in microphone and audio transducer with speech recognition, and obstacle detection technology. Beside this hands-free give a great move for blind people in finding destination, it also have the other advantages in its measure (veri light/lightweight). Hopefully the price will also good so all our blind brothers could have it one.