An oral care implement such as a toothbrush includes a head defining a longitudinal axis and a plurality of tooth cleaning elements supported by the toothbrush head. The body has a coaxial hex socket formed therein to allow a tool bit to be inserted thereinto. The vertical arm has an upper end tongue and a free elongated portion at the lower end. A circuit arrangement for generation of a local oscillator signal has an oscillation generator and a filter circuit arrangement as described above arranged downstream of the oscillation generator.