iGlasses Ultrasonic Mobility with clear lenses The iGlasses Ultrasonic Mobility Aid are glasses you wear and they vibrate if there are obstacles in the way. They cost $165.00 and are sold by Humanware. Objects in your path are detected by the ultrasonic sensors and communicated via gentle vibrations. As obstacles get nearer the frequency of the vibration will increase. The device is intended as a secondary mobility device to complement the traditional long cane or guide dog The vibration intensity level can be fine tuned to suit your personal preference and your current environment