combination: The shell is flameretardant polypropylene (PP) and houses a performance aluminum wire motor. This setup improves motor durability, optimizes heat dissipation, and provides reliable protection across 35C to 70C (31F to 158F). Low noise design: Metal fan blades and density bearings deliver quiet operation (about 60 dB), helping keep bedrooms and living spaces undisturbed. Safety design: A transparent switch cover allows on/off operation even when wet, increasing safety. Vent openings are protected by nets to prevent hand injuries. Easy to use in 3 steps: Put the inflation head on the inflation port, press the switch, and the blower runs. It includes a 2 m / 7 ft power cord for flexible use in different locations. Practical compatibility and applications: Compatible with standard inflation heads and valves. Ideal for inflating air mattresses and camping gear, pool floats and inflatables, tents or bounce houses, at home, outdoors, or on trips.