It is available in two colours: luxurious black and pure white. Ideal for warming up and basic practice. There is no need to worry about remaining battery power during daily practice. The sound out mode enables tuning by ear by oscillating a reference tone from the main unit speaker or connected headphones.
I am extremely happy with this metronome. It is clear that Korg has listened to feedback over the years because this model does everything right. Simple, very clear controls, capable of being as loud as you want/need, etc. Highly recommended!