Joyo Mini Guitar Amp 5W Portable Small Electric Guitar Practice Amp, Ja-05G Good compatibility - Suitable for all kinds of electric guitars with 6.35mm plug, and can also be used for electronic wind instruments and more. Compact and portable, plug and play - Plug in this mini guitar amp and use it anytime, anywhere, helping you get rid of the trouble of using cords. Built-in 4 effects to meet your practice needs - With clean, distortion, overdrive and reverb effects, all switched through the EFFECT button. With Bluetooth function, Bluetooth 5.1 - You can enjoy the backing tracks via Bluetooth, or this small amp can also be placed on the desktop for playing music. Rechargeable guitar amplifier - Can be used for about 5 hours after being fully charged. We suggest that you use 5V 2A charger. Please don't use chargers with Voltage 5V, as they will damage the product or cause other serious consequences.