60,000 BTU Forced Air Propane Space Heater with Overheat Auto Shutoff Value:package 75 High Frequency Response (kHz) 75 High Frequency Response (kHz) 20 Electronics Included Components No additional items included Power Type Hardwired Color Family Granite Indoor Outdoor Outdoor Returnable 180 Day Starting Wattage 10 Wired or Wireless Wired Low Frequency Response (Hz) 80 Amplification Type Passive Speaker Style Freestanding Number of Speakers 2 Color Finish Granite Sensitivity (dB) 94 Impedance (ohms) 8 Features Marine Product Depth (in GearWrench introduced the original patented five degree ratcheting wrench in 1996 and quickly became a go to brand for professional automotive technicians this heater features a convenient handle that makes it easy to carry around where the warmth is needed most fall or early spring