Abstract: A speech aid apparatus for laryngectomees includes a first housing having disposed therein, a sound head with a hard diaphragm held therein, an electrodynamic oscillator connected to the sound head and including a magnet system with an oscillator coil, a plunger connected thereto and a soft diaphragm vibrationally connected to the first housing through the plunger whereby the soft diaphragm sets the hard diaphragm into vibration. The apparatus also includes a second housing for a power supply and an operating switch and the two housings are releasably mechanically and electrically connected by a bayonet joint. The magnet system includes a pot type magnetic arrangement with an axially polarized very thin annular permanent magnet held between two pole rings made of a soft magnetic material and having rotational symmetry. The upper pole ring is pot shaped with a downwardly open annular gap concentric with the central opening of the magnet arrangement and the oscillator coil projects into the annular gap.