The U2-DW wireless mouse has the left-side curved design, combined with the overall curve of the back, reduces the thumb angle, which supports a faster index finger click speed.
Index finger movement is related to thumb angle.
The U2-DW wireless mouse also has the right-side curved design facilitates easy placement of the ring finger, which promotes balanced force exertion on both sides of the hand and allows for better stability during mouse movement.
Others without right-side curve
Others' right-side design causes
imbalanced hand force exertion.
U2-DW with right-side curve
U2-DW 's right-side design supports more
balanced hand force exertion.
Wireless Mouse with Easier Thumb Access
Through experiments with different shapes and positions, U2-DW's side button design facilitates easier thumb access.
Larger angle of the thumb placement.
Back side button has a more forward press point, reducing the angle for thumb placement.