Mini Guitar Amp 3W Portable Guitar Speaker DC 9V MP3 Playback Stereo Headphone Output Lightweight for Wood Guitar Ukulele Erhu Violin Volume and Tone Distortion Gain Adjustment Features: 【High Output Power】: This portable guitar mini speaker boasts a 3W output power, providing a robust and clear sound. The volume and tone distortion gain can be easily adjusted, allowing you to customize your sound to your liking. Perfect for electric guitars, ukuleles, wind instruments, violins, and more. 【MP3 Connectivity】: The speaker can be connected to MP3 players and other external source equipment, offering you a wide range of audio options. Enjoy your favorite tracks or practice along with backing tracks, enhancing your playing experience. 【Stereo Headphone Output】: The speaker features a stereo headphone output, automatically disconnecting the internal speaker when headphones are plugged in. This allows for private practice sessions without disturbing others, making it ideal for use at home, in the studio, or on the go. 【Portable and Convenient】: With its compact size and lightweight design, this mini speaker is easy to carry and use. Whether you're practicing at home, performing outdoors, or jamming with friends, this speaker is your perfect companion. It can be powered by a DC 9V adapter or a 9V block battery, offering over 10 hours of playtime (adapter and battery not included). 【Versatile Tone Control】: The speaker comes with a GAIN control for adjusting the amount of gain or distortion in the overdrive channel, and a TONE control for bass to treble tone adjustment. This gives you the flexibility to shape your sound and achieve the perfect tone for your music. Specifications: Output Power: 3W Speaker: 3.0 inch, 4 ohms Battery: 9V (6F22 type) not included Item Size: 15.8 * 7 * 9.6cm/6.2 * 2.8 * 3.8inch Item Weight: 346g/12.2oz Note: Due to the different display screen and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Packing List: 1 x Small Speaker 1 x Instructions