This is an electric toothbrush from ProfiCare. It's a battery-powered model and the brush head moves in oscillating motions.
From Amazon
PROFI CARE BROSSE Ö DENT ULTRASON ÇLECTRIQUE PC-EZS 3000
Notino
ProfiCare EZS 3000 electric toothbrush 1 pc
Conrad Electronic
Profi-Care PC-EZS 3000 330000 Electric toothbrush Rotating/vibrating White, Blue