This adjustable power supply blower with air collecting duct is perfect for cooling or ventilation in limited clearance spaces. Its adjustable speed and easy plug & play operation make it suitable for a variety of noise environments and applications, including car seats, AV cabinets, wood stoves, and outdoor BBQs. With 9 x 9 x 3cm size, 97mm fan diameter, 12V DC voltage, 1.88A current, and 4700RPM revolutions, it is made of durable black USB plastic and comes with a variable speed controller and air duct for convenient use. Features 1. LOW PROFILE DESIGN: 97mm blower is suitable for projects that requires cooling or ventilation with limited clearance; widely used in car seat, AV cabinet, wood stove, outdoor bbq and more 2. ADJUSTABLE SPEED: With 4v to 12v variable speed controller enables setting the fans speed to optimal noise and airflow levels for various applications and noise environments. 3. PLUG & PLAY: The power adapter input 100V to 240V AC; enables the fan to be powered through an AC outlet; the long power adapter enough meet your demands. 4. The power adapter input 100V to 240V AC; enables the fan to be powered through an AC outlet; The long power adapter enough meet your demands. 5. PRODUCT DETAIL: 9733 BLOWER: 9 x 9 x 3.3 cm, Voltage: 12V DC | Current: 1.88A, Speed: 4700RPM. Specification Material: Plastic Color: Black Size: 9 x 9 x 3 cm, Fan diameter: 97 mm Weight: 350 g Voltage: DC 12V Current: 1.88A Revolutions: 4700RPM Conductor: total length 250mm 2pin Package Include: 1 Blower 1 Variable Speed Controller 1 Air Duct