Three to four years ago I bought my first pair and almost immediately fell in love with them. Power Guidance. The pattern is also a little bit big as the size is smaller. Unless shut off they will remain the default. com had a 10% return fee but 30 day window to return. It works fine but no benefit from the premium cost of this memory. The quality of the beads could be better. The mouse comes with 3 abilities to connect to your device for use. I have not been disappointed. If the metal housing wasnt so ridged it wouldnt be carving grooves in the thumbstick.