It has an adjustable holder for the soldering iron. Adjust the holder to your working style. The holderensures accident free operation while working with hot parts of the soldering iron. Power saving with automatic sleep and shut off options when soldering iron is placed in the holder.It has a lock-type sleeve assembly for soldering irons which enables quick change of the composite tips.It has a control key card which enables locking at a temperature setting.It has an alarm which warns when the solder joints reach low temperatures.