Supply multi simple ways of selecting songs: by word count, letter, language, song stars and song NO. etc. Roll function and delete function Karaoke setup: digital coaxial, dub and original function, tonal modification function This product is a multi-functional av HDD player, with the features of volume delicate and easy to use. It's a good helper for your study, work, entertainment and a good companion for your life. Portable HDD function: USB 2.0 interface, windows management, be convenient for your study, work and entertainment. Playback function: Can play av programs as MPEG4, DVD, VCD, MP3, CD, etc. And JPG pictures Edit function: Can do the operations as copy, remove, rename, delete, and so on, for the files and folders in the HDD. Large capacity: Can adopt the HDD of 20g, 40g or 80g.160g For example: The 40g HDD can save 20, 000 MP3 songs or 70 mp4 movies. Search playback, repeat playback, a-b segment repeat playback, etc. 9-picture playback function for the picture, 12 kinds of pictures playback transition effect. Cvbs/avand VGA video output, can be connected to the TV or computer display. TV signal: Pal, NTSC, auto. Full function remote control, more convenient. Stereo audio output.