An electronic keyboard or home keyboard is a electronic musical instrument, an electronic or digital derivative of keyboard instruments. Broadly speaking, in a popular music context, the term electronic keyboard or just keyboards mostly refers to any type of digital or electronic keyboard instrument. These include synthesizers, digital pianos, stage pianos, electronic organs and digital audio workstations. However, in true musical terminology, an electronic keyboard is an inexpensive synthesizer equipped with built-in power amplifier and small loudspeakers.