Unbranded Smart Register Vent Booster Fan - 4"x10"&4"x12"- iOS & Android Apps, Room Temperature Control, 30% Energy Saving

New version with all new software & App: Easy DIY Install. Easy to Use - install your SmartCocoon booster fan into your home's vent within minutes. Use With Or Without The App - You simply have to drop the device in the floor vent & plug it in. The AI will do the rest. SmartCocoon senses and learns when your HVAC system is on and only pulls in more warm or cold air into that desired room making it more comfortable almost immediately. It automatically operates in "Energy saving" mode without the app. Smart Sync with all thermostats - No matter if you have a smart or conventional thermostat, your device works with all of them. Barely Visible, Highly Effective - SmartCocoon booster fan sits under your existing vent grill and boosts the air when you need it without changing the look of your room, keep using your existing grills. Unique design - Fits in almost any 4 in. x 10 in. & 4 in. x 12 in. vent boots and the springs keep it tightly in proper depth allowing common grills to be placed on top. Get More Contr...