[1] The Bradley: A Timepiece Designed to Touch and See:
http://www.kickstarter.com/projects/eone/the-bradley-a-timepiecedesigned-
to-touch-and-see .
[2] Satoshi Ohtsuka, Nobuyuki Sasaki and Y. Fukunaga: A Vibration Watch
Using a Mobile Phone for Visually Impaired People, The 1st IEEE
Global Conference on Consumer Electronics, 321-322 October 2012 in
Makuhari, Japan.
[3] Meteor Vibrating Watch:
http://www.visionaustralia.org/shop/product-list/product-detail/meteorvibrating-
watch .
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