Black and Decker Single Burner Portable Buffet Range. The easy-to-use design is compact for lightweight portability with a variable temperature control knob so you can cook or keep food warm at just the right temperature. The single burnercoil distributes heat evenly, while a handy power indicator light provides added peace of mind and ease during use. Added versatility to your kitchen with an additional burner, or use it to keep food warm at a party or potluck.