■ Acoustic Guitar Amplifier ■Output: 10W ■Speaker: 5" x 1 ■Control VOLUME: Volume adjustment BASS: bass adjustment TREBLE: treble adjustment SHAPE button: EQ section (BASS/TREBLE) effect more noticeable ■Input and output: 1/4 TS phone input terminal. Connect instruments such as acoustic guitar, keyboard, etc. AUX IN: 3.5mm stereo input Connect your smartphone or music player. Headphone OUT: 3.5mm stereo output Connect your headphones or earphones. ■Dimensions: 8.5 x 9.6 x 5.7 inches (216 x 245 x 146 mm) ■ Weight: 5.6 lbs (2.6 kg)