Double Noise Reduction The switch’s damper adopts an independent soft rubber (TPE) structure, which mitigates both downstroke and upstroke noise to offer double noise reduction. According to the test data statistics from the Kailh lab, the sound level of this silent switch when triggered is equivalent to decibels measured at a depth of 100 meters in the deep sea if the keycap is installed. PC And POM Stem Alternative The stem comes in two materials, PC and POM, each of which will offer you a different typing experience. The PC stem has better light transmittance allowing for a better backlight effect, whereas the POM stem brings a smoother feel. Upgraded Light Guide An improved tapered LED window prevents keycap compatibility issues and solves the problem that the switch jam certain keycap. Large Impact Contact Area There is a large impact contact area to eliminate vibration and reduce noise reduction to deliver a stable and ultra-quiet feel. Product structure Box Red Switch (White Stem) Type LinearOperation Force 50±10 gfPre-travel 1.8±0.4 mmReturn Force ≥15 gfTotal Travel 3.6±0.3 mmSound Level QuietLifespan Up to 100 million cyclesSuitable for Gaming/office Box Red Switch (Transparent Stem) Type LinearOperation Force 50±10 gfPre-travel 1.8±0.4 mmReturn Force ≥15 gfTotal Travel 3.6±0.3 mmSound Level QuietLifespan Up to 100 million cyclesSuitable for Gaming/office Box Brown Switch Type TactileOperation Force 45±10 gfPre-travel 2.0±0.4 mmReturn Force ≥15 gfTotal Travel 3.6±0.3 mmSound Level QuietLifespan Up to 100 million cyclesSuitable for Gaming/office