Although not totally silent because they are still being played by striking a stick on the surface of the drum heads, electronic drums and their counterpart devices usually produce considerably less acoustic noise than a traditional drum kit. Also, the drummer can use headphones for an essentially silent and private practice in dwellings where it would be impossible to have a studio or acoustic noise level, and perhaps where regular-sized kits would not fit.
They are much lighter, smaller, and easier to transport than an acoustic drum kit. Electronic drum sets are (usually) more compact than acoustic drums- though it is possible to have them customized to acoustic sizes – or convert acoustic kits to become one and so that alters their size benefits, depending on your choice