This is again another one of those products from thomann that makes you think why would you pay more for something else.
It turned up in really nice packaging, which is always a pleasant surprise when you buy a cheap item. Like the rest of the mini pedals out there, this runs off a power supply only, there's no room for a battery. The case is a solid metal, and we'll painted. The button is reassuringly sturdy and makes a nice positive click when you push it. The display is really bright, very be as you to see on a dark stage. The important part does it work? Yes, I've had no issues with it at all, it tunes perfectly every time, even when tuning very low it just works. I've checked it's reliability against a bigger and more expensive tuner and this one was always spot on, so I've since sold the more expensive one. It mutes the output when your tuning so also great for instrument changes while on stage
As mentioned the pedal is very small which I like, it means more room for pedals on my board.
Pro
Small form
Sturdy
Easy to use
Reliable
Cons
There really isn't any
As I said at the start why you'd need to pay more a tuner overalls don't know, this one does everything you want in a cheap but reliable package.