Guangzhou KASS ELECTRONIC Co., Ltd specialized in computer video and audio series product, Such as USB DVB-T/DVB-S/ISDB-T/ATSC Tuner, USB Video Capture, USB 4 CH USB DVR ,Video and Audio Converter, such as USB Cassette player, USB to DVI/VGA converter. 2.4G Wireless Music transmitter. Welcome to call for detailes.