|If you feel the guitar is too big to carry it, the mobile Air Guitar, you can put it in the bag and play in anywhere. The Air Guitar PRO($27) is using Infrared Ray to replace tranditional strings. SEVEN Buttons on the Guitar Front NecK from "C, D, E, F, G, A, & B". FOUR Buttons on the side of the Guitor Neck to represent "Major, Minor, Augmented & Diminished". You just Press the correct keys and "Swing" your finger below the guitar, Sounds come out. With the IN / OUT Media Ports, you can Plug in your Music Player (iPod, MP3 Player, etc) and Headphone.