From Boss:

Katana-Mini X delivers acclaimed Katana tones in a fun and inspiring amp for daily practice and jamming. Evolving on the features of the popular Katana-Mini, it offers six versatile analog sound options and two simultaneous effects, housed in a robust wood cabinet for a bigger and fuller guitar experience. Katana-Mini X also provides many enhancements to energize your playing sessions, including an onboard tuner, front-facing panel controls, an internal rechargeable battery, and onboard Bluetooth for streaming music from your smartphone.