The TRIO listens to the way you play and automatically generates bass and drum parts that match your song. Just plug your guitar into TRIO, press the footswitch to teach TRIO your chords and rhythm, then press the footswitch again to start playing with your own personal band! The TRIO provides seven music genres to choose from including: Blues, Pop, Alternative Rock, Rock, Country, R&B, and Jazz. Up to twelve song styles are available for each genre and you can select between 3/4 and 4/4 time signatures. The TRIO can learn up to 3 different song parts which can then be recalled on-the-fly as the song plays back. An optional DigiTech FS3X Footswitch can be connected to the TRIO for easier, hands-free selection of song parts and styles. The TRIO offers independent Genre, Style, Tempo, Bass and Drums controls; Guitar and Control Inputs; Amplifier, Mixer and Headphone Outputs; Built-in Guitar Effects (relative to music genre); a Soft Click Footswitch and includes a 9V DC adapter.