"SANYCASA Register Booster Fan for 4" x 10" Register Holes, Super Quiet Vent Fan Booster with Intelligent Thermostat, Improves Heating & Cooling Vents, App Control, 10-Speeds, White Convenient Dual Control: Take full control of your air boosting register fan with app and button operation. The app allows remote control of multiple devices simultaneously, while the intuitive button interface offers convenience at your fingertips. Manage your ac vent booster fan effortlessly, whether you’re at home or away. Whisper-Quiet Operation: Experience ultra-quiet comfort with our vent booster fan, operating at lower than 18 dBA. Featuring quiet stator-blade PWM fans with hydro-mechanical blades, it delivers powerful airflow without disturbing your peace. Perfect for bedrooms, offices, or any space where silence is essential. Energy-Efficient Performance: Our register booster fan maximizes airflow from your HVAC vents, ensuring efficient room temperature regulation while reducing energy consumption. With automatic speed adjustment, it intelligently adapts to your room’s temperature, saving energy and lowering utility bills. Speed up Air Circulation: High-end brushless DC motor and custom 7-blade fan designed for ultra-quiet and high-speed airflow in high-static pressure environments. The smart register booster fan's powerful 140CFM flow quickly removes air from the ducts and quickly activates every inch of air in the room for fast efficient cooling or heating and minimizing energy costs. Easy to Installation: The vent booster fan can be used on the floor or mounted directly to the wall without any modifications, and it is easy to operate. NOTE: FITS 4" X 10" REGISTER HOLES! Date First Available: September 24, 2024 Model Name: CASC-SRV-410WT Package Dimensions: 40.6 x 24 x 7.6 inches; 1 kg Unit Count: 1 Count Air Flow Capacity: 140 Cubic Meters per Minute Included Components: Cable Clips, 1 x Instruction Manual, 1 x Fan, 1 x USB Power Cord Control Method: Remote Item model number: CASC-SRV-410WT ASIN: B0DHV75PHR Material Type: Alloy Steel Assembly required: No Mounting Type: Wall Mount Model Number: CASC-SRV-410WT Special Features: Remote Controlled, Quiet Operation, Programmable Colour: Oil Rubbed Bronze Brand Name: SANYCASA Manufacturer Contact Information: SANYCASA Manufacturer Contact: SANYCASA Style Name: Casual Item Dimensions D x W x H: 6.4D x 10.2W x 25.4H centimeters Manufacturer: SANYCASA Electric Fan Design: Ceiling Fan Power Source Type: Corded Electric Item Weight: 1 Kilograms Batteries required: No"