不知香港有無呢隻野賣?

http://www.mobile01.com/topicdetail.php?f=497&t=3472081

而家用緊隻差唔多既,不過係 onkyo (好似係...)出既,有 sensor 拎起就係presenter,放低就係mouse,個輥係trackball 黎,放低係上下左右滾輪拎起係 trackball....隻野用左好多年,好似壞壞地....

見呢隻技嘉好低磅.....唔知香港有無得賣?