Chois Technology Co., Ltd. Since its inception in 2001, we have focused on wireless next-generation interface devices such as RF presenter and RF PC remote control. In December 2002, for the first time in Korea, we launched the "X-Pointer", which allows users to control and announce PCs without the help of an assistant using USB RF wireless communication. In October 2004, we released the "X-Remocon", which allows users to control computers in the house wirelessly without interference from the walls or surrounding environment and to enjoy movies in the living room when TV-out is supported. In 2011, the XPM Series product family, which includes a Magic Key feature that allows users to change the value of a key (button value) at any time, is now available for presentation, as well as some features such as media player, game, music, Photo Viewer, Remote control is now possible. In addition to XPM Series products, XPR-MS receivers equipped with Micro SD Reader and allowing users to insert up to 32GB are available. In 2012, we launched the world's first smartphone-based presenter X-pointer Mobile.