It's a great way to practice or just warm up before you hit the stage

As a small, inexpensive way to play guitar through headphones it does work

However, I needed a way to practice until I could afford a good bass amp

Great way to practice.

Way cooler than I expected.

AC-20 Headphone plug is probably the best way to play your electric guitar with no Amp

This not only is a portable and practical way to practice it also has a rhythm function.

This is a great way to practice bass.

The drum loops built in are an incredible way to feel like you’re rehearsing with someone

Great way to keep the neighbors at bay

One downside I found out that hard way is that it is pretty fragile

I run my iPhone through it and play along and love the way it sounds.

What a great, low-cost way to be able to play your acoustic-electric bass through your headphones

When it worked, there was never really a good way to configure the device to have access to the controls power and jacks

Don't bother using this with earbuds, you won't get very good sound that way.

Great way to rock the U-bass at night while my SO sleeps.

Great way to practice without bothering your house mates.

This amp is a great way to practice with headphones at all hours without waking people up

A great way to play without waking up sleeping kids or neighbors

It's a fun way to practice

Great way to play on the couch and not bother your wife sitting next to you watching TV

Fantastic way to practice in quiet during later hours of the evening/night.

On my acoustic guitar there is simply no convenient way to play with this thing sticking out as it does

This little thing crushes, ten ways from Sunday

A headphone amp is an excellent way to practice bass and the Vox amPlug is probably the best choice available

If you are looking for an easy way to plug in and jam by yourself, these little plugs are fantastic.

I use iReal pro on an iPad pro so the auxiliary port is an awesome way to jam

Good feature, just no way of knowing

I thought this would be an easy way to mess around on guitar without having to fire up my DAW or plug into an amp, but it sounds so bad it's not ever worth the $30

Works as it's supposed to- practice so the world doesnt have to hear.

The volume of the beat machine is also adjustable so you can have it as low or as cranked as you'd like.

This thing is really as great as it gets

This wonderful device allows him to plug his headphones in and play his guitar as loud as he wants, but I never hear a thing.

There are three separate drive channels, as well as, chorus, delay and reverb effects with varying preset degrees of depth.

This is an awesome invention and works exactly as you'd want it to - and beats paying $600 for a Vox amp to plug your headphones into