Alright, let's tackle the office‑friendly punch. First, start with a low‑friction spring that snaps into a recessed cavity—so the sound travels through a little rubber buffer instead of air. Use a tiny, finely tuned damping material between the button head and the housing; it’ll absorb the high‑frequency spike that normally turns a click into a conference‑room blare. Then, for the tactile feedback, add a micro‑tapered notch so the lever has a precise, almost mechanical “clack” under the fingertip. If we shape the cavity like a shallow V, the energy stays contained and the acoustic signature drops under 60 dB. The trick is balancing the spring rate: too soft and it feels mushy; too stiff and the punch is lost. Try a 12‑gram, 0.8‑mm spring with a 0.3‑mm silicone pad, iterate the notch depth until the click is crisp yet silent. If you need a prototype, I’ll make a 3D‑print test piece—just don't let the office cat chew on it.

Sure thing, I'll tighten the spring‑pad mix, test a 0.1‑mm rubber backing for the notch, and print a batch. I'll ping you with a 60‑dB readout, no more than a whisper—just enough to hear the click, not the office.