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Bytelight uses LED to track customers

Bytlelight is a new app being developed that will allow retailers to use the LED lights on your phone to track where you are in a store. From there it will let the retailers send you coupons and discounts for products you are near instantly in order to save you money and push you towards a sale.

Read more:  http://venturebeat.com/2013/10/25/bytelight-uses-led-lights-to-pinpoint-your-exact-indoor-location/

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