Type: Silent keyboardFeatures:1. Activated in milliseconds, quieter, total stroke: 2.8mm with keycaps, decibels less than or equal to 35 decibels2. Silent MINI low-profile shaft, newly developed silent low-profile shaft, light and thin, activated in milliseconds, typing without disturbing others, more focused on work3. New silent structure, adds \"silencer rings\" to the guide rails on both sides of the shaft to reduce the sound of impacts caused by the collision of the upper and lower covers during pressing and releasing4. More than 50 million keystrokes lifespan: no fear of key failure and rebound problems during long-term useCategory: Island MINI, Whale Fall MINIIsland MINI:Operating force: 43 +10gfConduction stroke: 1.3 0.30 mmTotal stroke: 2.80 0.25 mmMechanical life: 50 million timesWhale Fall MINI:Operating force: 45 10gfConduction stroke: 1.3 0.3 mmTotal stroke: 2.80 0.25 mmMechanical life: 50 million timesProduct size: 2cm*2cm*2cmProduct weight: 2gIncludes: 1pc