Electronic drums, like other synthesizers, require amplification. Keyboard amplifiers and P.A. systems both serve well for electronic percussion sound re-enforcement. Since most young percussionists begin their musical training on gum rubber practice pads they easily adapt their playing technique to the similar surface of electronic drum pads. One major advantage of a set of pads is that they can be played through headphones. Several students can practice in the same room without interfering with each other or with people in adjoining rooms.
Students can also practice at home without fear of disturbing family members.
I know some parents who would pay any amount of money for such a drum set. Striking a percussion controller can trigger pitched tones as well as non-pitched or traditional percussion sounds. With the appropriate hardware a single percussion controller can be set to produce a series of pitches or chords. Students can trigger melodies and chords by hitting pads with drumsticks, mallets or fingers. Teachers can introduce melodic and rhythmic improvisation by programming pre-set melodies and harmonies.