I was looking on Thomann for a floor tuner which would be muteable, I came across a few different pedals but to me this one seemed the best for many reasons.
The tuner has a switch, once pressed your instrument is muted and then you can tune the instrument, using any one of 4 different modes and if required you can also choose the frequency. The switch is one of the new "non-click" types and is very smooth and sturdy. Also a great feature not even for tuning but also for muting your instrument between songs, or in passages of songs which you don't need to play ect, or my favourite use, to mute your signal to change instruments without causing any noise.
The accuracy of the tuner in Strobe mode is more accurate than most tuners, probably more accurate than the human ear can detect, very important also is that the tuner can detect very low notes, lower than some/most other popular brands of tuners which is extremely important to me for tuning 5 string basses, even downtuning some 5 string bases to GCGCF the tuner picks up the low G extremely quickly and accurately.
The tuner is very well built and designed, don't let pictures fool you, the screen is quite large and vivid and very easy to see both in daylight and even moreso in the dark (for stage use), the chassis is thick sturdy aluminium and will take a lot of abuse.
My ONLY negatives regarding this tuner, when powering the tuner via DC power cable, the tuner does not store your settings, I set the tuner to strobe mode during use, however when I plug it out and plug back in later on the tuner is back in standard tuning mode (its easy to reset so not a big issue but important to remember if you are tuning to anything other than A=440).
Also the tuner display is mainly red/green so if you are red/green colourblind this is important to note, I believe Korg makes other very similar tuners (also sold on Thomann) which use a green/blue display instead.
Overall for the price this is a GREAT tuner.