PHILIPS Precision Trimmer 4000 Touch-up pen trimmer Model HP6388/00

This is a compact pen-style trimmer for women’s grooming by Philips: model HP6388/00. 

It’s designed for facial hair and eyebrow grooming, featuring a small “1/3″ trimming head” for precision. 

It supports two trimming lengths (2 mm and 4 mm) via a comb attachment for eyebrows. 

It runs on a single AAA (or included battery) for cordless portability. 

The device is marketed as an on-the-go beauty tool for quick touch-ups of fine hairs on the face (e.g., upper lip, sideburns) as well as shaping eyebrows.