Among its easy to use temperature control, the RDK features real-time parameter adjustment that maintains power output levels and avoids burnout. A hot coil warning is installed even after turn off, since most hot coils take up to 25 minutes to fully cool. The temperature display is closely attuned to the surface of the nail. In order to preserve the battery life, there is a timed automatic power-off feature. The whole machine is complete with a black anodized aluminum casing for additional durability and a sleek look. The LED display, in contrast, gives a stark white background for easy readability.