A palm-sized directional sonic weapon that fires a focused infrasonic pulse at 18 Hz, targeting the vestibular system to cause immediate nausea, vertigo, and loss of balance. Unlike omnidirectional alarms that rely on volume, the PP-3 uses frequency to incapacitate — the infrasonic pulse is barely audible but physically devastating, disrupting the inner ear's ability to maintain equilibrium. Targets typically collapse within two seconds of exposure and remain incapacitated for thirty to sixty seconds after the pulse stops.

Tessera adapted the PP-3's core technology from their military-grade sonic weapons, miniaturizing the emitter assembly to fit in a device roughly the size of a deck of cards. The civilian version is power-limited to prevent the bone-stress injuries their military products can cause, but the effect on balance and orientation is still severe enough that Tessera includes a wrist lanyard — if the user accidentally points it at themselves, they will fall down.

The PP-3 operates on a rechargeable cell that provides fifteen three-second pulses per charge. It is significantly more expensive than basic alarms, positioning it as a Tier 2-3 self-defense option for people who want active incapacitation rather than passive deterrence.