Tested and confirmed to be working. I've only used it about twice, including for testing, so it's practically in new condition. The BOSS KATANA-MINI is a compact 7W guitar amplifier with AUX IN and headphone outputs, designed for portability. - Brand: BOSS - Model Name: KATANA-MINI - Output: 7W - Connections: AUX IN, HEADPHONE OUT - Controls: GAIN, TONE, VOLUME, EQ - Power: AC adapter or batteries - Color: Black Thank you for looking.