A quiet fan system designed for cooling receivers, amplifiers, DVRs, and other AV components. Protects components from overheating, performance issues, and shortened lifespans. LCD thermostat programming with six speed controls, alarm alerts, failure triggers, and memory. Contains three dual-ball bearing blowers with PWM-controlled motors to minimize noise. Dimensions: 17 x 13.5 x 1.5 in. | Exhaust: Front | Airflow: 160 CFM | Noise: 24 dBA

A quiet fan system designed for cooling receivers, amplifiers, DVRs, and other AV components. Protects components from overheating, performance issues, and shortened lifespans. LCD thermostat programming with six speed controls, alarm alerts, failure triggers, and memory. Contains three dual-ball bearing blowers with PWM-controlled motors to minimize noise. Dimensions: 17 x 13.5 x 1.5 in. | Exhaust: Rear | Airflow: 160 CFM | Noise: 24 dBA

Efficient Air Flow: Runs at 70 CFM and has a 4.0 sone rating for a quiet and efficient operation in rooms up to 85 sq ft Ease of Installation: Easy installation or replacement of existing product with adjustable housings to fit walls up to 6-10 inches thickness Customizable: White polymeric grilles are paintable allowing you to match your existing decor Air Ventilation: This fan helps remove humidity, smoke, and cooking odors to keep your house fresh and clean Feature: With dampers for room to room or room to outdoor ventilation

28” Stainless Steel Whip with Built-in 2” Shock Spring Quality Coax Cable with PL-259 to Motorola Connector Mirror Mount with Shock Spring

[About exhaust effect] only after the fan is turned on and running for one minute can you feel the exhaust effect. Please wait patiently. If you want to achieve the best exhaust effect, please turn on the third gear of the fan 【Product features】The fan has three gears. The first gear can increase 30% of the exhaled gas. The second gear can increase 60% of the exhaled gas. The third gear can increase 80% of the exhaled gas.The temperature of muggy f∂ce is reduced, the fresh air is replaced, and your breathing is made to be more comfortable and smooth. 【About the battery life】650 mAh battery,For the USB mini fan, long press 3 seconds to turn the machine on and off, with the 3-gear variable speed. It is charged for the 1~2 hours, and it can be used for up to about 6 hours in the first gear, the 4 hours in the second gear, and the2~3 hours in the third gear. 【About the fan】The mini fan is designed with the 15 fan blades, so that it is made to maximize the exhaust in a limited space. It is easy to install, and can be self-modified and installed to any f∂ce shield.The maximum noise of the fan is about 37 decibels, and weighs about 28g,which can be used comfortably 【Our services】The products enjoy a permanent warranty, you can contact us at any time, the goods and other services are returned or replaced free of charge for you.