This is the TASCAM portable CD guitar trainer "CD-GT2". It's a CD player that allows you to connect a guitar and output the sound of the CD and the guitar simultaneously. It has convenient features for practicing guitar, such as changing the playback tempo of the CD source, looping only a certain part, and attenuating the guitar sound of the source. The following operational checks have been performed for this listing: ・Power on by connecting the AC adapter ・Power on using 4 AA batteries ・CD playback ・Connection with a guitar and use of the built-in effects ・Audio output by connecting earphones Thank you. - TASCAM "CD-GT2" [Contents] ・CD-GT2 Main Unit ・Instruction Manual [Product Features] ・Allows changing the playback speed without changing the pitch. ・Allows changing the pitch without changing the playback speed. ・Allows attenuating the lead guitar sound during playback. ・Allows loop playback of a desired range. ・Can be powered by batteries (4 AA) or an AC adapter. ・Built-in guitar effects. ・Built-in microphone effects. ・Allows playing guitar while listening to a CD. ・Built-in tuner. ・Built-in metronome. ・Equipped with a headphone jack and a line output jack. ・Allows operation of the main unit using a footswitch.