Allows you to set one finely-tuned temperature for your heated clothing. Common Features (select from drop-down for more details): Control up to four articles of heated clothing as long as the total power being used does not exceed 12 amps. It comes with overload, short circuit, and reverse polarity protection features. Comes with a convenient belt clip on the back. Detailed Specifications: The Dual Temperature Controller allows you to specify two distinct temperatures for multiple pieces of heated clothing. Rotary switches allow you to choose from 7 levels of heat to ensure your heated clothing remains at the perfect temperature. The coiled wire connects to the battery cord, and the two straight wires connect to your heated clothing. LED illumination indicates ON/OFF status for each rotary switch individually.