I'm looking for some sort of wireless data transfer and I need it to be very focused. I need something similar to a TV remote, very directional, fairly long range. I'd like it to be as precise as possible and as fast as possible. I'd also like it to be as harmless as it can be, since lasers tend to hurt/annoy people. Could someone tell me what it is that I am looking for? I know how to describe it but I'm not sure exactly what it's called or if it exists. Thanks!