
The BY2 and BY1 switches do not have force adjustment functionality, but only support adjusting the distance between the contacts. However, they are surprisingly effective, and the BY-2 switch seems to perfectly match your hand without any adjustments needed, resulting in extremely smooth and effortless transmitting, far surpassing the standard automatic key of "臭虫".

The contact points are made of silver-plated gold material, so there's no need to worry about oxidation; they react very sensitively.

The spring connection method is simple, directly attaching to two single screw bolts. Changing the spring seems to be the only way to adjust the force, but this is completely unnecessary for the BY-2.

The bottom connection method allows you to keep your desk tidy, which is very convenient for me, a person who has to hide all the cables. It also comes with an internal hexagonal slot, so you can easily store it underneath and take it out whenever you need to adjust it.

Disadvantages: The chrome finish is too difficult to maintain; even a light touch leaves fingerprints. I'm considering buying another one in black...