This FORTRESS® ULTRA QUIET Series Shop/Auto Air Compressor is 80% quieter than similar workshop/auto compressors, with just 69 dBA sound output. The brushless 4-pole induction motor delivers 140% more runtime* while lowering heat and friction for 4X pump life**. This high performance air compressor comes with 8 in. x 2.4 in. flat-free tires, roll bar protected control panel with 2 in. gauges and two brass universal couplers, so it’s ready to go right out of the box.