on the case: by putting his head right, it's super tough and really practice. reading on screen is very simple - the A435 A 445 Hz in red with frquence just green and wholesale center plays the note. the only trouble is when we play in the sun, the visibility is not great.
on functions: personal I not amused schedule a special tuning with so .. but we can prprogrammer his pedals depending on the desired tuning. You can choose also between two OUT connections, one can have a bypass and a switching of the tuner no sound coming out (to match practice between two pieces without a course) and the other one bah start the tuner with lots of noise (choose your camp comrade).
in the end: the fact that it is in fact a PDAL an indispensable accessory in concert. bypass is more than convenient, just to change the scratch during the game without the amp is braille dj nikel, just be careful, even if it is plugged in and battery, begins to eat the battery soon as you plug INSERT. There's just this concern for visibility in the sun that is that I enlve a point.