Check the listing for details. Crown Seating Stealth Pro Executive Audio Engineer's Chair. Condition: New. Listed at 749.00 USD. Makes You Feel Like You're Floating on Water Sore back? Stiff neck? If you're hurting after a long session, it's time to upgrade your chair. The Crown Seating Stealth Pro Executive Chair has patented ZenWave motion technology that makes you feel like you're floating on water, enabling forward movement without the harmful pressure. Its Active Tilt seat plate pivots with ease, supplying proper body alignment, while its free-float backrest gives you continuous support when you lean forward. Customizing the chair's position is a breeze using its three lever adjustments. Beyond that, its extra-large, convex-shaped backrest delivers extreme comfort, massaging and improving blood flow to your lower back — essential for people who recline a good deal of the day.