1) Its got a sensor lens fitted at the bottom of the cane. So when a blind person approaches a traffic light or stairs, the cane senses it.
2) It warns the user of the obstacles via a vibrating handle.
The Eye Stick is fitted with a sensor lens towards the bottom part, from where it picks up location bearings, like is the person nearing a staircase, or is he near the traffic lights. It then sends feedback to the blind commuter via vibrations, communicating the scenario, so that the person can be aware of his surroundings and take his next step with confidence.