Here we have the boss TU3, the chromatic tuner. Let's go ahead and unbox it. Let's open up the box. That's a lot of paper. Look how thick that is. Like, it's a thick boy. Comes in different languages of more right there. This goes over the warranty, and here we go. We've all been waiting for the tuner itself. Here we go. You can click it on and off. Over here on the back, it's got power, it's got an end and an out. So you can chain from here. So right here, you got this. It's like with most boss pedals, you can open it up. And then, oh, it comes with a 9 volt battery already installed. Then you twist this back. So you have the output, the bypass, and the input. Let's go ahead and try plugging in to the input. Take my trusty base here, plug it in. So let's go ahead and try tuning with it. Looks like it might be a sharp. But wait, you know what we can do? We can try the cord tuner as well. Looks like for a 440, they're both saying it's pretty spot on. There we go. Looks like both of these agree pretty well. I like the boss to you three, because it allows me just to have it in my signal chain like on my pedal board. But with the cord tuner right here, you can use your metronome that you can also have go as well. So this is great for practice. This is great for performance.