The BaBylissPRO FXONE LO-PROFX Grey Trimmer (FX729E) is a low-profile finishing trimmer for lines, edges and close detail -- a fully exposed Blue Titanium T-blade on the interchangeable FXONE battery that every FXONE tool shares. It is cordless, ultra-low-profile and finished in grey, made to sit light in the hand for the sharp, controlled detail work that defines a cut.
- What it is: FXONE LO-PROFX low-profile T-blade finishing trimmer, grey
- Best for: Lines, edge-ups, necklines and close detail
- Motor: High-torque digital motor, 6,800 RPM
- Blade: Fully exposed Blue Titanium standard-tooth T-blade, 360-degree, zero-gap adjustable
- Power: Interchangeable snap-in FXONE Li-ion, cordless, up to 3 hours, dual-voltage base
- Handling: Quick battery release, 4-stage LED ring, ergonomic grip
- Profile: Ultra-low-profile metal shield cover, grey finish
Why a low-profile finishing trimmer
A clean cut is made in the detail -- the lines, the edge-up, the neckline. The FXONE LO-PROFX trimmer keeps a low, flat profile and a fully exposed T-blade, so you can see exactly where the blade meets the skin and steer it right up to a crisp edge. Because it runs on the shared FXONE battery, it drops into the same charging system as the rest of your FXONE tools -- one battery type across the kit, no separate charger to track. It is the detail tool that finishes what the clipper starts.
Key features
- High-torque digital motor: a high-torque digital motor holds a steady 6,800 RPM for clean lines through coarse and fine hair alike.
- Exposed Blue Titanium T-blade: a fully exposed 360-degree Blue Titanium standard-tooth T-blade, zero-gap adjustable, for maximum visibility and a close, defined line; the Blue Titanium runs at a lower blade temperature.
- Shared FXONE battery: the interchangeable snap-in FXONE Li-ion gives up to 3 hours cordless, with a quick-release button and a 4-stage LED ring; the same battery fits every FXONE tool.
- Low-profile metal build: an ultra-low-profile metal shield cover and an ergonomic grip keep it light and precise, charged on the included dual-voltage base.
What to expect
This is a finishing trimmer -- lines, edge-ups, necklines and close detail, not bulk cutting. It runs cordless on the snap-in FXONE battery and tops up on its dual-voltage base; there is no corded pass-through while cutting. It is not a fade clipper or a shaver: pair it with the matching FXONE LO-PROFX grey clipper (FX829E) for the bulk and fade, and an FXONE foil shaver for the finish -- all three share the same FXONE battery.
Who it is for
- Barbers and stylists who want a low-profile detailing trimmer on the shared FXONE battery system.
- Lines and edge-ups: the exposed T-blade works right up to a clean, defined edge.
- FXONE users who want one battery type across every tool in the kit.
Who it is not for
- If you need bulk and fades: add the matching FXONE LO-PROFX grey clipper (FX829E), which handles the cut and blend.
- If you want the fuller all-metal build: the FXONE All-Metal Gold and Black trimmers run the same FXONE battery in a heavier metal body.
- If you need corded running: the trimmer is cordless-only and runs on the snap-in battery.
Professional tip
Set the blade to zero-gap for the sharpest lineup and let the exposed T-blade do the seeing -- hold it flat against the skin and work to the edge while the shape is fresh. Keep a second FXONE battery charged on the base; because every FXONE tool shares the battery, a spare keeps the whole kit moving.
How to use
- Charge the FXONE battery fully on its dual-voltage base before the first use.
- Snap the battery into the trimmer and adjust the blade toward zero-gap for a closer line.
- Hold the exposed T-blade flat to the skin and outline the hairline, neckline and edges.
- Work in small, controlled strokes for a clean, defined edge.
- Oil the blade lightly after use and brush out the cut hair.
- Return the battery to its base so the trimmer is ready for the next cut.
Care and maintenance
Brush the cut hair from the blade after every use and add a few drops of clipper oil along the teeth to keep it running smoothly and at a lower blade temperature. Re-set the blade to zero-gap with the supplied tool if it drifts, and fit a matching BaBylissPRO replacement blade from the BaBylissPRO accessories page when it dulls. Charge the FXONE battery on its dual-voltage base and keep the quick-release contacts clean. The FX729E shares its interchangeable FXONE battery with the wider FXONE range, pairs with the FXONE LO-PROFX grey clipper (FX829E) for the cut and fade, and works alongside the BaBylissPRO Levante dryer to finish the look.
In short
- Low-profile finishing trimmer: a fully exposed Blue Titanium T-blade for lines, edge-ups and close detail.
- On the FXONE battery: 6,800 RPM, cordless, up to 3 hours on the shared interchangeable FXONE battery.
- Grey, travel-ready: ultra-low-profile metal, dual-voltage base, easy to pair with the matching clipper.
Complete your FXONE kit
- BaBylissPRO FXONE LO-PROFX Grey Clipper FX829E -- the matching clipper -- bulk, tapers and fades
- BaBylissPRO FXONE LO-PROFX Grey Duo -- the clipper and trimmer together as the matched duo
- BaBylissPRO Levante Hair Dryer 2100W -- lightweight professional dryer to finish the look
Frequently asked questions
Does this trimmer share a battery with other FXONE tools?
Yes. The FX729E runs on the interchangeable FXONE Li-ion battery that snaps into every FXONE tool, so one battery type powers your whole kit. It ships with an FXONE battery and a dual-voltage charging base, and a spare battery from another FXONE tool drops straight in, so you can keep working while one charges.
Can I use it abroad?
Yes. The charging base is dual-voltage, so it works on any mains worldwide -- you only need a plug adapter for the socket shape, not a voltage converter. An adapter changes the plug; it does not change the voltage, and the dual-voltage base handles the rest.
Can I run it with a cord plugged in?
No. The trimmer is cordless-only and runs on the snap-in FXONE battery; there is no corded pass-through while cutting. You charge the battery on its base between uses, and a second FXONE battery lets you keep working while one charges.
Is it best for lines or for bulk?
It is a finishing trimmer, built for lines, edge-ups, necklines and close detail with its fully exposed Blue Titanium T-blade. For bulk removal, tapers and fades, use the matching FXONE LO-PROFX grey clipper (FX829E); the trimmer is the detail tool that finishes the cut.
How do I keep the blade cutting well?
Brush out the hair and add a few drops of clipper oil along the blade after each use. Re-set the blade to zero-gap with the supplied tool if it shifts, and fit a matching BaBylissPRO replacement blade from the BaBylissPRO accessories page once it dulls. Regular oiling keeps it running smoothly and at a lower blade temperature.
Is it a clipper or shaver too?
No. The FX729E is a finishing trimmer -- it lines and details, but it is not a fade clipper or a shaver. For bulk and fades add the matching FXONE LO-PROFX grey clipper (FX829E), and for a foil-close finish add an FXONE foil shaver; all three share the same FXONE battery.
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