<b>Overview</b><br/><br/> The GB-10 from Tascam is a trainer/recorder that allows guitar and bass players to learn and record new music. It is the ideal practice tool for musicians of any skill level to build their technique. A tuner and metronome are also built-in for precision playback. The unit can be used in many ways. One way is to simply plug an instrument into 1/4" input and play through the included amplifier modeling, reverb and other effects. The music can be recorded to the included 2GB SD card with an overdub mode to build up arrangements. With HPC-A30 Closed-Back Studio Monitor Headphones from Polsen are designed for monitoring audio in studio, field, mobile, and DJ applications. They feature 50mm drivers that provide a frequency response of 18Hz to 22kHz for accurate reproduction of your audio and 16GB Ultra UHS-I SDHC Memory Card from SanDisk.<br/><br/> <b>In the box</b><br/><br/> <b>Tascam GB-10 - USB Guitar/Bass Trainer/Recorder</b><br/> USB Cable<br/> 2 x AA Batteries<br/> 2GB SD Card<br/> One (1) Year Warranty<br/><br/> <b>Polsen HPC-A30 Closed-Back Studio Monitor Headphones</b><br/> 1/4" Adapter<br/> Limited 1-Year Warranty<br/><br/> <b>SanDisk 16GB Ultra UHS-I SDHC Memory Card (Class 10)</b><br/> Limited 10-Year Warranty<br/>