With its built-in 7.1 surround card, the Woojer Vest has 8 location-specific haptic zones, each one representing 1 out of its 8 sound channels. And each zone has an “Osci inside” – Woojer’s patented Oscillating Frame Actuator which is 3X more powerful than those used in our previous products, providing an immersive experience impossible to create with anything else.