The pocket-sized amp that’s ready to go - BOSS serves up another instant classic with the BOSS Katana:Go Mini Guitar Headphone Amplifier in Black. Guitarists and bassists will find a treasure trove of tone within this pocket-size headphone amp, which includes 10 amp types and over 85 effects in guitar mode and three amp types and over 65 effects in bass mode. Simply plug it into your guitar’s output, select a memory setting, connect your favorite headphones or earbuds, and you are ready to rock. With features such as authentic stage-class Katana amp sounds, BOSS spatial technology, Bluetooth, a 5-hour battery life, and an OLED display, the Katana:Go serves up impressive amp functionality at a fraction of the size. Furthermore, users can connect to the BOSS Tone Studio app for even more tools and an infinite sound library.