This is HP's new Touch-to-Pair-Mouse. For just $40, HP will sell you this chunk of NFC-enabled peripheral, which can be paired with devices with the lightest tap. Sounds great, right? Apart from, who the hell has NFC on their computer?
Very few people, that's who. Off the top of my head, I can only think of—funnily enough—the HP Spectre as having NFC. There are probably more that I've forgotten, and I'm sure you'll put me straight in the comments, but as far as I can tell this product has practically no market right now.