Feature: 1. Possess outstanding sound quality and simple operation, plug and play 2. High definition distortion timbre small speaker is suitable for various realtime performances of electric guitars 3. Mini size portable shape is easy to store and convenient to carry 4. You can rock and enjoy the fun that music brings to you without affecting others at any time, whether you are at school or traveling 5. Can externally input compact disc/MP3/ mobile phone audio and other audio as background accompaniment and also have earphone answering function Specification: Item Type: Mini Electric Guitar Speaker Material: ABS + metal Headphone Input Hole: Approx. 3.5mm / 0.1in Mobile Phone/CD/MP3 Input Hole: Approx. 3.5mm / 0.1in Power Supply: 2 x AAA batteries (not included) Size: Approx. 88 x 73 x 28mm / 3.5 x 2.9 x 1.1in Package List: 1 x Mini Electric Guitar Speaker 1 x User Manual Note: Please insert the mini amp into the guitar connector firstly, then connect to the second stage, and turn the volume to the minimum, then turn on.