The white stick gets a 21st century makeover: £30 smart cane uses SONAR and vibrations to help blind people 'see'

The white stick gets a 21st century makeover: £30 smart cane uses SONAR and vibrations to help blind people 'see'

Indian company AssisTech's £30 ($50) SmartCane it helps the visually impaired avoid potential hazards both on the ground and in the air (demonstration pictured).