Features: 3W power amplifier for electric guitar. A clip on the back offers convenience. Equipped with volume & tone controlling functions. Sound is clear and clean, with excellent distortion effect. Connect the CD or MP3 with the 3.5mm auxiliary channel input jack to get the sound accompaniment. With 3.5mm earphone output jack and LED power indicator. Powered by 1PC 9V 6F22 battery or connect DC 9V adapter. Specifications: Color: Black Output: 3W Battery: 9V 6F22 battery (not included) DC jack: DC 9V Impedance input: Main input: 100K Auxiliary input: 10K Item size: 15 * 9 * 5cm / 5.9 * 3.5 * 2in Item weight: 252g / 8.9oz Package size: 16 * 10.5 * 6cm / 6.3 * 4.1 * 2.4in Package weight: 299g / 10.5oz Package List: 1 * Guitar Amp 1 * User Manual(English & Chinese)