Features: AUX in allows you to play accompaniment through your phone or computer, whether it is practicing piano or listening to songs. 3.5mm stereo headphone output, you can practice the guitar in a quiet environment, and do not let go of every detail of the sound. The knobs on both sides of the speaker can be hung up after being twisted. Made of durable ABS plastic and metal, this guitar sound system delivers clear and powerful sound. There is a button on the panel that switches channels, and each speaker is equipped with two tone channels that best suit the instrument Specifications: Material: ABS+Metal Weight: 1771g Size: 23.8x16.5x14.5cm Type: US-plug/UK-plug/EU-plug/AU-plug Package Includes: 1x Guitar Amplifier note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to difference between different monitors, the picture may not reflect the actual color of the item.