Hotone Thunder Bass Mini Bass Guitar Amplifier Head, 5 Watt Inspired by the ampeg SVT, high quality tone with volume and gain controls 3 Band eq controls for shaping your tone Speaker out can automatically fit cabinets of different impedances (4-16 ohms) FX loop and aux in jack for use with an external music player Extremely compact configuration for portability, 18v dc power supply (adapter included)