Features: Mini 5W guitar amplifier, super lightweight and portable, easy to carry around when you go for a travel. Supports volume and tone adjustment, and with overdrive effect, giving you excellent and various sound effect. With 6.35mm(1/4 inch) input for connecting electric guitar and other musical instruments or device. 6.35mm(1/4 inch) output allows you to connect headphones to practice your guitar without bothering your neighbors. Dual power supply: 1 9V battery or DC 9V power adapter(both are not included), suitable for indoor and outdoor use. With shoulder strap and backside clip, convenient to carry the amplifier when play the guitar on the move. Specifications: Color: Black Power: 5W Item Size: 12.5 6 12.5cm / 4.9 2.4 4.9in Item Weight: 323g / 11.4oz Package Size: 13.5 13.5 7cm / 5.3 5.3 2.8in Package Weight: 360g / 12.7oz Note: The guitar showed in the picture is not included. Package List: 1 Amplifier