Feature : USB bus power,no extra power adapter required. Mini-Size retractable DVB-T antenna. Digital TV recording and playback as DVD quality. Advanced silicon tuner for worldwide analog TV receptions. Watch digital or analog TV in windows on your PC. System requirements: Intel Pentium 4/AMD Athlon XP/Centrinocertified laptop /2GHz CPU or higher 512 MB RAM(recommended maximum size) 1 free USB 2.0 interface Audio hardware with Direct support CD-R/DVD-R drive to create video CDs/DVDs AGP graphics card with DirectDraw drivers and video overlay support Terrestrial digital reception (DVB-T) Windows XP with ServicePack 2 Bus Interface: USB2.0 Input Signal: Digital TV Tuner 75 ohm(VHF/UHF) Receiving Frequency: VHF 174~230MHZ UHF 470~862MHZ Channel Bandwidth: 6,7,8MHZ COFDEM Mode 2K,8K Demodulator and FEC: Viterbi decoding 1/2,2/3,3/4,5/6,7/8 Guard interval 1/4,1/8,1/16,or 1/32 TV Standards: NTSC PAL and SECAM Tuner systems (B,G,H,D,K,I,M,N,L,L') Analog TV Tuner: TV channel CATV VHF/UHF IR: Remote control Infrared Remote Control