A DSP steam iron is an electric clothes-ironing appliance that uses heat and steam to remove wrinkles and creases from fabric quickly and easily. It has a water tank that produces steam when heated, which softens the cloth fibres so they lay flat and smooth as you glide the iron over them. Many models include an adjustable temperature dial, steam and spray functions, an anti-drip or self-cleaning feature, and a smooth ceramic soleplate for effective ironing on different fabrics.