Girly Perando, a computer engineer, holds up a prototype of her team's invention called the "Wearable Obstacle Detection System and Braille Cellphone for the Blind" at Mapua University in Manila

 
Girly Perando, a computer engineer, holds up a prototype of her team
Girly Perando, a computer engineer, holds up a prototype of her team's invention called the "Wearable Obstacle Detection System and Braille Cellphone for the Blind" during a presentation at Mapua University in Manila March 7, 2012. The invention, which can detect obstacles in a range of five metres, also serves as a mobile phone with a Braille keypad for the visually impaired. The invention cost around six thousand pesos ($142) to construct. REUTERS/Romeo Ranoco (PHILIPPINES - Tags: SOCIETY HEALTH)