The BaBylissPRO FXONE Lo-ProFX Grey Trimmer (FX729E) is the line-and-detail tool of the FXONE system -- a low-profile, cordless trimmer built for outlines, edges and beard detail, in a metal-shielded body that sits slim between the fingers. A high-performance high-torque digital motor turns at 6,800 RPM, driving a fully exposed, 360-degree Blue Titanium standard-tooth T-blade. It runs on the interchangeable FXONE Li-ion battery, so the same charged cell works across every FXONE tool you own.

In the box

• The FXONE Lo-ProFX Grey Trimmer (FX729E) with its exposed Blue Titanium T-blade
• One interchangeable FXONE Li-ion battery
• Dual-voltage charging base
• Zero-gap adjustment tool, blade guard and screwdriver
• Spare blade cushion, cleaning brush and blade oil

Why the low-profile FXONE trimmer works for detail

Where the clipper takes the weight off, this trimmer sets the lines -- and it does it with a fully exposed blade in a slim, low-profile body. The Blue Titanium standard-tooth T-blade sits fully exposed and 360-degree, so you can see exactly where the edge lands and carve a crisp outline, a clean cheek line or a defined beard edge. It is zero-gap adjustable for the closest lines, and the Blue Titanium is high-strength and designed to run at a lower blade temperature. The high-torque digital motor holds 6,800 RPM through coarse hair, and the ergonomic low-profile grip keeps the tool controlled for the fine moves that outlining needs. And because the FXONE battery snaps out and works across the range, the trimmer is one step in a system that grows with you -- add the matching clipper or an FXONE foil shaver and every tool shares the same battery, so you never buy the power twice. The metal-shielded body takes daily wear without loosening through a long detailing session.

Key features

• High-performance high-torque digital motor -- 6,800 RPM, long life
• Fully exposed 360-degree Blue Titanium standard-tooth T-blade, zero-gap adjustable
• Blue Titanium -- high strength and a lower blade temperature
• Interchangeable FXONE Li-ion battery -- works across the whole FXONE range
• Up to 3h runtime, 2h charge, 4-stage LED ring, quick battery-release button
• Ultra-low-profile metal shield cover and ergonomic grip; cordless, dual-voltage charging base

What to expect in the hand

It is slim and metal-shielded, weighted toward control rather than bulk, so it sits between the fingers for the fine work. The exposed T-blade gives you a clear sightline onto the edge, and the zero-gap setting means the blade meets the skin for the sharpest line. There is no taper lever and no combs -- this is a dry-line detail tool, not a bulk cutter. The FXONE battery ties it to the rest of your bench: pull the cell from the grey clipper, snap it into the trimmer, and keep working. Set it down the same way each time and your hand finds it without looking, and the exposed blade keeps your sightline clear on the edge.

Who it is for

• Barbers who want a low-profile outlining and detail trimmer
• Pros on the FXONE system who want one battery across their tools
• Anyone who works crisp lines, cheek edges and beard detail
• Barbers building the FXONE grey line one tool at a time

Who it is not for

• Barbers who need to take bulk off -- that is the grey clipper's job
• Anyone who wants guide combs and a taper lever -- the trimmer has neither
• Anyone who prefers each tool on its own separate battery -- see the Boost+ line

Professional tip

Lead the outline with the corner of the exposed blade and trace the line with the tip of the open blade so the edge stays sharp without digging in. Keep a charged FXONE battery ready so a detailing session never stops on a flat cell.

How to use it

1. Snap in a charged FXONE battery and check the blade is zero-gapped
2. Lead each line with the corner of the exposed T-blade
3. Work the outline, cheek lines and beard edges in short, controlled moves
4. Reset the zero-gap with the included tool as the blade beds in
5. Brush the blade out, add a drop of oil, and seat the tool on its base

Care and maintenance

Brush the hair out of the exposed blade after every client and keep it lightly oiled so it runs cool and smooth. The FXONE battery snaps out for charging or to drop a fresh one in. When the blade wears, a matching BaBylissPRO replacement blade is on the BaBylissPRO accessories and spares page. To section the hair cleanly while you work, add the BaBylissPRO Croco Clips X6.

In short

• Low-profile grey FXONE outlining trimmer, high-torque digital motor at 6,800 RPM
• Fully exposed 360-degree Blue Titanium standard-tooth T-blade, zero-gap adjustable
• Interchangeable FXONE battery -- works across the whole FXONE range
• Up to 3h runtime, cordless, dual-voltage base
• Lines, edges and beard detail -- the outline in the FXONE grey line

Frequently asked questions