The system has great potential for sharing messages with a select group of people or a single person without anyone else being the wiser. But it does have limitations. For a single LED, range is limited to a few inches. Lasers would have a longer range, but the beam needs to hit the receptor to work (and a laser beam shooting around an area isn't exactly covert).
Why choose us:
. With FOUND, customers significantly and effectively reduce their global procurement costs. Behind each service provided by FOUND, is hidden a cost saving for customers.
. We have two shop together, one is for prototype, quick turn, small volume making. The other is for mass production also for HDI board, with highly skilled professional employees, for high quality products with competitive price and on-time delivery.
. We provide very professional sales, technical and logistic supports, on a world-wide basis.hours complaint feedback