This TASCAM CDGT2 Portable CD Guitar Trainer is a must-have for guitar enthusiasts. It boasts a portable design that allows for battery operation ( batteries NOT included), making it perfect for on-the-go practicing. With features like CD-R compatibility, multiple inputs, and a compact form factor, this guitar trainer is suitable for both beginners and professionals alike. The CD-GT2 model is specifically designed for guitarists and has a range of input/output ports, including analog in, a phono input, and a line input. Whether you're using it as a monitor or for solo practice, this guitar trainer is a reliable choice. It’s lightweight but durable, and its dimensions of 5.43in. x 7.64in. x 1.52in. make it easy to carry in your guitar case. Plug in power supply not included.