Feature: 1. Mini desktop guitar electric amplifier with 3.2W output power, lightweight and portable, suitable for indoor and outdoor use. 2. With standard 6.5mm input jack, supports GAIN, output VOLUME and TONE control, Easy operation. 3. Built-in distortion and delay effects, which allows you to create special music style sound you like, and supports delay level and delay time adjustment. 4. You can connect music player/ smartphone via 3.5mm AUX IN to play your guitar along with background music; and with 3.5mm headphone out for silent practice. 5. 3 ways of power supply for selection: DC 9V power adapter(included), 6 * AA batteries(not included), or USB 5V. Specification: Features: Mini desktop electric guitar amplifier with 3.2W output power, lightweight and portable, suitable for indoor and outdoor use. With standard 6.5mm input jack, supports GAIN, output VOLUME and TONE control, easy operation. Built-in distortion and delay effects, which allows you to create special music style sound you like, and supports delay level and delay time adjustment. You can connect music player/ smartphone via 3.5mm AUX IN to play your guitar along with background music; and with 3.5mm headphone out for silent practice. 3 ways of power supply for selection: DC 9V power adapter(included), 6 * AA batteries(not included), or USB 5V. Specifications: Model: AM-3 Color: Black Currency Draw: 135mA Input Impedance: 1M ohm AUX IN: 10k ohm SNR: 88dB Power: 3.2W RMS Rated Power: 4.2W Speaker: 4 ohm, 5W Speaker Size: 3 inch Frequency Response Range: 40-16kHz Power Supply: DC 9V power adapter(included)/ 6 * AA batteries(not included) / USB 5V(not included) Power Adapter: input voltage 100-240V Item Size: 16.6 * 9.8 * 12.4cm / 6.5 * 3.9 * 4.9in Item Weight: 720g / 1.6lbs Note: Batteries and USB power cable are not included. Guitar showed in the picture is not included Package List: 1 * Guitar Amplifier 1 * Power Adapter Package List: 1 * Guitar Amplifier 1 * Power Adapter