GOBRILLFUN 80°F Water Cooling Seat Cushion for Car Seat & Office Chair

Continuous Water Circulation Cooling That Lasts: Unlike traditional gel or foam cushions that lose their cooling effect quickly, this seat cushion features an advanced water circulation cooling system that continuously removes heat from the seating surface. Instead of cooling for just minutes, it delivers long-lasting, stable cooling comfort for hours of sitting, continuous cooling to around 80°F(26.7°C) Smart Temperature Control with Auto Cooling Adjustment: Built with an intelligent cooling system, the cushion automatically adjusts performance based on seat temperature. When the surface cools down, it enters a smart intermittent cooling mode to maintain comfort efficiently. When heat builds up again, it resumes active cooling-ensuring balanced comfort without overcooling or wasting energy 3-Speed Cooling with 4-Hour Auto Shut-Off Protection: Choose from 3 adjustable cooling levels: Low (3000 RPM) for quiet cooling, Medium (4000 RPM) for daily comfort, High (5000 RPM) for powerful cooling in hot conditions. The cushion includes a 4-hour auto shut-off function, helping prevent overuse and ensuring worry-free operation Easy Water Fill System Without Ice: Simply add regular water to the 10 oz / 300ml reservoir bag, turn on the cushion, and let the water circulation system begin cooling. Within about 510 minutes, the seat surface starts to feel noticeably cooler, providing a simple, reusable, and hassle-free way to stay comfortable during long sitting Extended Power Cable for Flexible Use Anywhere: Equipped with a 4.9 ft (1.5 m) extended power cable, this cushion is designed for flexible use across different environments. Compatible with power banks, computers, and 12V/24V vehicle outlets, it works well for cars, trucks, offices, travel, and outdoor seating-keeping you cool wherever you sit Helpful Start-Up Tip for Optimal Performance: If the cooling effect does not start as expected, check that the water intake tube is not folded, bent, or blocked. After powering on, press and hold the fan button to force water intake and help activate the circulation system. For best performance, make sure the 10 oz / 300ml water bag is filled with regular water and positioned correctly Notice: Slght dampness may occur in hot or humid weather due to normal condensaton, not necessarly leakage. To reduce molsture,use medum or lowspeed, avoid overcooling, and wipe the cushion dry after use.