Built-in 4 Effects: This portable guitar amp is suitable for electric guitar and features clean, distortion, overdrive, and reverb effects to support daily practice. Compact and Portable: This mini guitar amp is ideal for travel or on-the-go practice. Its small size makes it easy to carry in a backpack or luggage. Despite its compact design, it delivers sufficient volume for practice with a 5W speaker. Plug and Play: Equipped with a 6.35mm input jack, the amp allows quick connection without complicated wiring, offering greater mobility. The design enables it to be easily attached to your guitar for immediate use. Bluetooth Function: This mini electric amp includes Bluetooth connectivity, allowing you to stream music from your phone or other Bluetooth-enabled devices for accompaniment during practice. Note: This device does not support Bluetooth headphones or Bluetooth speakers. Rechargeable Amplifier: The amplifier provides approximately 6 hours of use on a full charge. The built-in rechargeable battery eliminates the need for replacements and simplifies outdoor usage. We recommend using a 5V 2A charger. Avoid chargers with voltage exceeding 5V, as they may damage the product or cause safety issues. Note: Product appearance may vary slightly between batches, but this does not affect functionality. Color: Black Material: ABS Package Contents: 1 x Mini Electric Guitar Amp, 1 x USB Charging Cable, 1 x English Instruction Manual The package includes only the items listed above. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error is +/- 1-3 cm.