Features: USB1.1 digital terrestrial TV receiver Portable size equivalent to USB driver Power from USB port. No power adapter makes it easy to carry with your Notebook anywhere. Small antenna provide ribust clear reception Watch live terrestrial digital TV on your notebok/PC Record to disk and playback with DVD quality (720 x 480-NTSC,720 x 576-PLA) Real-time digital vidio recording as MPEG format It does not require external power soure and fixed antenna , thus allowing user to watch or record live digital TV programs Offers reception of ６,7,8 MHz channels