Key points such a text/manual would include:

Uses rotating brushes to remove dead skin cells and excess sebum, smoothing the skin surface. High Frequency:

The device combines several electro-aesthetic techniques, which are typically detailed in the manual: Brossage (Mechanical Brushing):

(Embedded as clickable, non-printing layered content in the PDF)

Косметологический аппарат Belex-08 Excellens Б/У - Wisehoff

If you misremembered the name, your device might be one of these: