Ive bought this to use with my HTC Smartphone and it works perfectly.Just install the software that comes on the CD, sync and reboot your smartphone.Pairing with it takes a few seconds. Just put it on discover mode, my phone found it essy and it was ready to go.Keys are soft and precise, with good spaces. Just found it a bit difficuld to open and close, but after you get accostumed to it, its nice at all. I do recommend.