What is main components of an audio?
Generally speaking, an audio comprises three main components:
 
Sound reproducer, such as CD Player, Tape Player, etc.
Amplifier, for amplifying audio signals from the sound reproducer for subsequent output to a speaker. Some high-grade audio divides an amplifier into front and rear grades.
Speaker, used for uttering out the sound.
What is difference between an ordinarypersonal stereo and Podio?
Generally speaking, a personal stereo is the term given to a portable audio player using an audiocassette player, beingmost widely used method of listening to music while traveling or exercising. This allows the listening of music through headphones while a person is mobile.
Podio is an all-in-one mini-audio, with a sound reproducer, an amplifier, and speaker per se without sacrifice of sound quality and with portable handiness. We name this sort of technology as MAP (MiniAmpTechnology)。
Why do you name your product Podio?
 It is an abbreviation of the phrase "Portable Audio", and also means portal audio. Moreover, since it is small enough to be put in a pocket, therefore Podio also means Pocket Audio or Palmtop Audio.