Sleeping
Concerts
Motorcycle
Swimming
Work
Kids
On stage
In the studio
Rehearsals
Writing music
Mixing at home
Daily commute
Long journeys
Listening at home
- Official UM partnerUK & EU, genuine stock
- 2-year warrantyHandled by our own team
- 14-day returnsUniversal Fit, seal unbroken
- Hand-builtBy UM's master artisans
The MEST MKII feeling
Close your eyes. The stage opens up around you.
A wide, holographic stage and a deep sub-bass you feel as much as hear. Your music sounds bigger than the room you are in.
Find your Unique Melody in 3 taps
Is the MEST MKII the one for you?
Three questions, honest answer. If another model suits you better, we will say so.
1What do you play most?
2How do you feel about treble?
3What is your budget?
Your match
3 questions to go
Answer the questions and we will match you to the right model.
Watch before you buy
Don't take our word for it.
Independent reviewers have lived with the MEST MKII for months. Hear what they hear, then decide.
Independent reviews. Plays right here, and only loads when you press play.
No time for 20 minutes?
Skip straight to what you care about
Each one plays the review from that exact moment.
The sound
Big sound for the small moments.
The commute, the late evening, the album you have heard a hundred times. Instruments sit around you, not between your ears.
BOLLSEN sound map, summarised from independent reviews.
Maybe not for you if you are treble-sensitive and listen loud, or lush, forward vocals come first: try the MKIII CF Blue.
Inside Unique Melody
Hand-built by people who have done it for a decade.
Every pair is assembled, soldered and tuned by hand in Unique Melody's own five-storey workshop, then listened to and measured before it ships.
Photos and facts © Unique Melody.
Inside the shell
Four driver technologies. One carbon-fibre shell.
8 drivers per side, each with one job, so nothing in the mix gets crowded.
- 011 × 10 mm dynamic: bass you can feelDeep, controlled sub-bass with real weight.
- 024 × balanced armature: clear midsGuitars, pianos and voices keep their shape.
- 032 × electrostatic: air and sparkleTreble out to 70 kHz opens up the space.
- 041 × bone conduction: texture and depthA subtle, tactile layer, strongest with a deep seal.
As seen on YouTube
16 honest reviews. Watch, listen, decide.
Life with MEST MKII
Wherever the music takes you.
Choose your fit
Ready to wear, or moulded to your ears.
Most reviewers say the MEST sound comes fully alive in Custom shells. Universal is the fast, flexible way in.
| Universal Fit | Custom Fit | |
|---|---|---|
| How it fits | Ear tips in several sizes | Hand-built from impressions of your ears |
| Bass and isolation | Great with the right tip | Steadier bass, more isolation |
| Bone-conduction effect | Subtle | Strongest |
| Delivery | DHL Express, 5–7 working days | 3–4 weeks after we get your 3D scans |
| Returns | 14 days, hygiene seal unbroken | Made to order: free refit instead |
How Custom Fit is made · UM has built custom monitors since 2006
Find where to get your ears measured
Custom Fit monitors are made from ear impressions or a 3D scan of your ears. We accept both. Audiologists and hearing centres across the UK and Europe can take them in a short appointment.
- 1Order Custom Fit
- 2Book impressions or a 3D scan
- 3Send them to us
- 4Yours in 3–4 weeks
When you call, ask for “ear impressions for custom in-ear monitors”.
Most clinics charge a small fee. Our ear-impression guide arrives by email after you order.
When you call, ask “Do you offer 3D ear scanning for custom in-ear monitors?”
Not every clinic has a scanner, so ask first. Our guide email after you order explains how to send us the scan file.
Reviews
What owners and reviewers say
Owner rating on Head-Fi · 16 video reviews
One of the best-loved MEST models: owners rate it 4.7 out of 5 on Head-Fi, and reviewers keep coming back to its huge, holographic stage. The honest caveats: it needs a deep fit and the right tips, and the treble can get hot if you push the volume.
What they love
- A holographic stage and precise imaging
- Smoother, more natural timbre than the first MEST
- Deep sub-bass and plenty of micro-detail
- A smaller, more comfortable shell
Worth knowing
- Treble can tire you at high volume
- Sound depends on fit: try the AZLA tips first
- Some call it a sidegrade to the first MEST
Summarised from headphones.com, IEMRanking, Headfonia, Mobileaudiophile.
At first I wasn't immediately impressed with the MEST MKII. However, after a few days of listening, the sound quality truly revealed itself: incredibly rich, clear and detailed, with excellent isolation thanks to the full in-ear fit.
Jonh H. · Verified owner
Amazing sounding in-ear monitor.
Ryan Dolan · Verified owner
Own the MEST MKII? Add a photo and tell other listeners what you hear.
The details
Everything you need, nothing to add.
In the box
- MEST MKII monitors (pair)
- UM Copper M2 custom cable, included in the plug you choose
- Leather carry case
- AZLA SednaEarfit Xelastec and silicone ear tips in several sizes
- Cleaning tool, storage pouch and warranty card
Contents as supplied by Unique Melody and may vary slightly by batch.
Key specs
- Drivers per side: 1 dynamic, 4 balanced armature, 2 electrostatic, 1 dual-sided bone conduction
- Impedance: 12.3 Ω · Sensitivity: 112 dB @ 1 kHz
- Frequency response: 20 Hz – 70 kHz
- Connector: flat 0.78 mm 2-pin
- Cable included: UM Copper M2, 24 AWG OCC copper, 2.5, 3.5 or 4.4 mm
- Shell: one-piece carbon fibre with gold foil
Which plug?
- 3.5 mm: phone dongles, laptops and most music players
- 4.4 mm balanced: dedicated players and balanced DACs, more control
- 2.5 mm balanced: older players with that socket
- The cable is included in every plug, at the same price
- No amplifier needed for most listeners
Delivery
- Universal Fit: DHL Express, 5–7 working days
- Custom Fit: 3–4 weeks once we have your 3D ear scans
- Price includes UK VAT
Warranty & returns
- 2-year BOLLSEN warranty with UK & EU support
- Universal Fit: 14-day returns with the hygiene seal unbroken
- Custom Fit: made to order, free refit if the fit is not right
- Your statutory rights are not affected
Product safety
The MEST family
MKII, MKIII or Jet Black?
You are here MEST MKII |  MEST MKIII CF Blue |  MEST Jet Black | |
|---|---|---|---|
| Character | Fullest, most cinematic | Most balanced, vocal-friendly | Most technical |
| Bass | |||
| Vocals | |||
| Staging | |||
| Selected | View MEST MKIII CF Blue | View MEST Jet Black |
Character summarised from independent reviews.
FAQ
Your questions, answered
Universal or Custom Fit: which should I choose?
Universal Fit arrives fast and uses ear tips, so you can share it or resell it. Custom Fit is moulded to your ears: a perfect seal, more stable bass and the strongest bone-conduction effect.
Does the bone-conduction driver make a difference?
It adds a subtle, tactile layer and a sense of depth rather than a separate sound. You notice it most with a deep, well-sealed fit, and most of all in Custom Fit.
MEST MKII, MKIII or Jet Black?
MKII is the fullest and most cinematic, with the most sub-bass. MKIII CF is the most balanced and vocal-friendly, with relaxed treble. Jet Black is the most technical, with the best staging and imaging.
Do I need an amplifier?
No, a good phone dongle or music player will drive it. A balanced 4.4 mm source gives it more control.
Which ear tips should I use?
Try every size and type in the box before judging the sound: the right tip sits snugly and the bass suddenly fills in.
How does ordering a Custom Fit work?
Choose Custom Fit and order. We email our ear-impression guide, a local audiologist takes the impressions (usually charged separately), you send them in, and your monitors arrive by DHL Express 3–4 weeks after we receive them. Not right? We arrange a free refit.
How fast is delivery?
Universal Fit is delivered by DHL Express in 5–7 working days. Custom Fit takes 3–4 weeks once we have your 3D ear scans.
What warranty and returns do I get?
A 2-year BOLLSEN warranty handled by our UK & EU team. Universal Fit can be returned within 14 days with the hygiene seal unbroken. Custom Fit is made for your ears, so you get a free refit instead of a change-of-mind return. Your statutory rights are not affected.
Why buy from BOLLSEN?
BOLLSEN is the official Unique Melody partner for the UK and EU: genuine stock, a 2-year warranty from our own team, clear delivery times and help choosing.
Bought from a hearing company. Looked after for 2 years.
The official Unique Melody partner for the UK & EU: genuine stock, help choosing and warranty support from our own team.
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