This 3-Watt Low-Voltage Micro Guitar Amplifier is perfect for clean guitar playing. Users can easily control the volume and tone using the knobs on their guitar. The amplifier features a low profile FET-input, making it compact and easy to handle. With a board size of 0.95 inches wide, 1.75 inches long, and 0.75 inches high, it is designed to fit comfortably in tight spaces, such as an Altoids can. This amp runs on 3 to 4 AA batteries, providing a voltage range of 4.5 to 6 volts. It is important to note that applying more than 6 volts to the unit may cause damage. This Class D audio amplifier is a great choice for musicians looking for a small, portable option without sacrificing sound quality.