Philips MG3921/15 12-in-1 All-in-One 3000 Series Trimmer

Philips MG3921/15 for flexible everyday grooming

The Philips MG3921/15 is an All-in-One 3000 Series trimmer made for buyers who want one cordless tool for beard, head and body trimming. It is built around interchangeable attachments, so you can choose the right comb or head for the grooming task at hand.

Multiple attachments, one handle

Philips shows the MG3921/15 with beard, stubble, hair, body and intimate combs, plus a nose and ear hair trimmer attachment. That makes it easier to keep different grooming areas in one device instead of buying separate tools for each use.

Trim close or keep a set length

The manual shows the trimmer can be used without a comb for close trimming and contouring, and with combs for guided length control. For MG3921, the illustrated combs include 1 mm, 2 mm, 3 mm, 5 mm and 7 mm options, plus larger hair and body combs shown in the same manual.

Cordless use with USB charging

Philips states that the MG3921/15 takes about 8 hours to fully charge and delivers up to 60 minutes of cordless use. The manual also shows a USB cable and a small-plug charging connection, which is useful if you want a simple charging setup at home.

Cleaning and storage are straightforward

Philips says only the cutting element and attachments can be rinsed under the tap after detaching them from the handle. The manual also shows a cleaning brush and pouch, and it advises storing the appliance and accessories dry.

Who should consider this trimmer?

This model suits shoppers who want a single trimmer for routine beard shaping, beard stubble maintenance, hair trimming and basic body grooming. If you need a cordless trimmer with a broad attachment set and simple USB charging, this page matches that need well.