How loud is my Snow Joe Ultra? Your Snow Joe Ultra has a decibel rating of 100 dB. Related articles What depths will my Snow Joe SJ625E clear? How do I start my Power Joe? What safety precautions should I take when operating the Snow Joe Ultra? Does the Snow Joe Ultra require assembly? What battery is compatible with this unit 24V-X4-SB24 and 24V-X4-SB21?