Feature: 1. Portable Bass Amplifier: Amplify your bass with the 10W mini guitar amplifier, featuring 2x5W bass speakers for powerful bass, with a compact size, perfect for indoor and outdoor practice. 2. Lasting Endurance: Equipped with a 3.7V lithium battery with 3000mAh large capacity, this bass amplifier supports up to 4 hours of continuous use, ensuring that you can play without interruption. 3. Double Channels: Switch between clean and drive channels to play your bass with the tone you desire, giving you versatile sound options. Meet your more needs for performance and practice. 4. BT and AUX Input: Enjoy convenient control over background music volume with separate volume controls for BT and AUX inputs, this bass amplifier eliminates the need for a smartphone or computer. 5. Headphone Output: Plug in your headphone in amplifier and enjoy your favorite tunes without disturbing your neighbors, making it perfect for late night practice sessions, convenient and practical. Specification: Item Type: Mini Guitar Amplifier Rated Power: 10W Headphone Impedance: 30Ω Input Impedance: 1MΩ Auxiliary Input Impedance: 10KΩ Speaker Impedance: 4Ω BT Version: 5.1 Battery Capacity: 3.7V 3000mAH Lithium Battery (built in) Power Supply: DC 5V 1A(USB C). Package List: 1 x Guitar Amplifier 1 x USB Charging Cable 1 x User Manual