Novelty functions consist of chimes, alarm systems, and also pendulums. Such attributes are built directly into the device. Chimes and also alarms included various choices as well as interface switches, whereas an oscillating tab provides the clockmaker with a means to attach a cosmetic-only pendulum that emulates the habits of an actual one.
Many devices are battery powered, either with a C cell or AA cell. However, some come with a cord that plugs into an electric outlet, either in addition to the battery (for back-up functions) or rather than it. In some cases vendors supply a solar option.