Delivery time upon request. The product is custom-made to customer specifications.
Mason FS Nuit Étoilée
The Starry Night.
Under a sparkling starry sky whispering in your ears, experience the novel hybrid pressure bone conduction system crafted with meticulous artistry. Embark on a journey full of freedom and joy with Nuit Étoilée, discover new sounds, and let vibrant colors bloom into an artistic flourish.
Artisans unite their skills to preserve their craft. Driven by the longing to pursue beauty with unwavering persistence, they infuse styles with the palette of music, composing under the celestial canopy. Nuit Étoilée leaves behind a romantic, star-adorned night.
Case
Nuit Étoilée, also known as The Starry Night, is a tribute to the famous Dutch post-impressionist painter Vincent Willem van Gogh. The shell of this masterpiece reflects the vibrant colors of Van Gogh's famous painting and accurately reproduces the texture and spirit of the original work.
Under a star-studded night sky unfolds a realm of boundless freedom and imagination. Each Nuit Étoilée artistically depicts the movements and changes of the starry night and presents a symphony of various textures and colors.
With the help of CNC technology, Starry Night is brought to life in three-dimensional splendor. This harmonious fusion lets the art dance in harmony with the music, transcending the boundaries of time and space.

BC-Turbo Micro Booster + Frequency Shift Bone Conduction Transducer
Since UM introduced the world's first piezoelectric HIFI IEMs with single vibration in 2019, the concept of bone conduction has sparked lasting enthusiasm among customers.
In the past five years, UM, as a pioneer in bone conduction technology, has tirelessly researched and introduced various patented bone conduction drivers. These innovations include bilateral bone conduction, OBC coil-based bone conduction, silver-palladium alloy bone conduction, and frequency-shift enhanced piezoelectric bone conduction.
Improving the technology of bone conduction drivers itself has proven difficult due to limitations in methods, size, internal structure, and installation volume.
Greater improvements at the driver level are almost impossible to achieve. Since developing frequency-shift bone conduction, we have realized the necessity to go beyond the single driver level and focus on a system-level approach to offer a specialized electroacoustic system for bone conduction drivers.
Over the past two years, we have explored various solutions and experimented with different materials. The result is the BC-Turbo Micro Booster. This revolutionary booster transforms bone conduction from a single acoustic driver into a comprehensive electroacoustic system, achieving a remarkable 20-fold stable audio signal amplification.

The BC-Turbo Booster features a highly precise, ultra-thin frame only 0.15 mm thick. By maximizing the winding area in the smallest controllable space, we ensure high conversion efficiency.
The BC-Turbo Booster features a 20-fold conversion ratio in the primary stage, resulting in a significant amplification of the audio signal. Utilizing the ultra-high magnetic circuit efficiently and losslessly transfers the primary stage's energy and robustly drives the audio load.

FreqShift bone conduction driver vibration test curve (green)
Vibration test curve of the FreqShift bone conduction driver + BC-Turbo Micro Booster (red)
The BC-Turbo Micro Booster is characterized by its compact size and strong driving power. The BC-Turbo Micro Booster was specially designed for the FreqShift bone conduction transducer, distinguishing it from conventional booster systems on the market.
As shown in the illustration, installing the BC-Turbo Booster into conventional bone conduction significantly increases the vibration frequency of bone conduction, thereby optimizing its performance. Rigorous tests have shown a marked improvement in sound quality when the BC-Turbo Booster is combined with the FreqShift bone conduction transducer.
Compared to standard bone conduction systems, this hybrid bone conduction system offers unprecedented sound penetration and coherence. The addition of a small motor improves rhythm, making it more rhythmic and giving the sound a structured quality.
FreqShift Bone Conduction Driver and Frequency Shift Technology Updates
Frequency shift technology
Human hearing typically ranges from 20 to 20,000 Hz, with reduced sensitivity to tones below 20 Hz and above 20 kHz. The Frequency-Shift technology adjusts the device's resonance point to 20 kHz, enhancing sensitivity in the original application environment and optimizing mixed audio effects in the 20 to 20,000 Hz range.

The FreqShift bone conduction driver, a novel creation by UM tailored to the frequency range of human hearing, was developed from dual-side bone conduction and coil-like bone conduction. By using high-temperature palladium conductive paste and a pure copper substrate, the resonance point is refined within 20 kHz. This refinement leads to increased sensitivity, stability, and vibration comfort.
FreqShift bone conduction driver diagram
Virtual effect of the FreqShift bone conduction driver
Persistence and perfection
The engineers at Unique Melody have developed a hybrid bone conduction system through repeated experiments, rigorous calculations, tuning, and listening sessions, combining a BC-Turbo Micro Booster and a FreqShift bone conduction driver.
The results of years of development and intensive research have produced a unique masterpiece for the next generation of the Mason series, where inspiration and action complement each other.
New flagship cable
The new First Times Shielding Pro headphone cable is a cable specially developed for the Mason FS flagship. The First Times Shielding Pro enhances the listening experience with a quieter background, livelier highs, and a fuller sound compared to the First Times cable.
By using a novel ultra-high-pressure copper material as the conductor and the high-quality Shielding Pro structure, this cable builds on the First Times foundation and improves the shielding effect through four independent shielding layers.
The result is a natural sound with highly restored details, complemented by enchanting vocals, captivating dynamics, and a spacious soundstage. Immerse yourself in music that becomes even more distinctive under the starry sky.
Gogh Bag leather bag
The Gogh Bag leather bag is made from a range of exquisite leathers, including Italian shoulder leather, Italian cowhide leather, and Indian chrome-tanned leather.
Italian shoulder leather, known for its high hardness and scratch resistance, is used for the yellow segment of the case. The navy blue part is made from Italian cowhide leather, valued for its soft and supple texture. Both leathers are crafted with great care and proprietary methods by the renowned Italian leather manufacturer "CONCERIA IL PONTE." The leather surface undergoes a special treatment to ensure a smooth texture, stain resistance, and a slow aging process.
The deep blue leather of the case comes from Indian chrome-tanned leather, known for its vibrant color and soft texture. With a thickness of 1.5 to 2 mm, the case is especially durable and robust.
The symbolism of the Gogh Bag leather case
The dominant colors of the Gogh Bag Leather Case are shades of blue and violet, complemented by a golden moon. A swirling mist with a distinctive design gives the bag a unique touch. Inspired by the masterpiece "Starry Night," the bag's design combines the curling mist with the calm, deep blue, creating a contrasting tone. In this emotional world, the colors become a canvas on which the artist's voice is expressed.
Portable HIFI
This versatile bag was specially designed for HIFI enthusiasts and features multiple compartments that can hold DAPs, headphones, Bluetooth devices, mobile phones, and much more. With its multifunctional design, it serves as a single bag for various purposes.


Specifications
- Mason FS Soleil Tombé
- BA + BC-Turbo Micro Booster & FreqShift Bone Conduction Driver
- 13 Drivers
- 2Pin Socket
- 23Ω
- 20Hz-40kHz
- 5-Way Crossover
- 4 Bass Drivers + 4 Mid Drivers + 2 Mid-High Drivers + 2 High Drivers + 1 BC-Turbo Micro Booster & FreqShift Bone Conduction Driver
- UM's First Times Shielding Pro Red Custom Cable
Scope of delivery
- Mason FS Soleil Tombé IEMs x 1 Pair
- UM's First Times Shielding Pro Red Custom Cable
- Gogh Bag Leather Case, Shell Case, Oval Clamp, Ring Clamp, UM Purple Canvas Tote Bag, Warranty Card, Changeable Filter, High-Grade Cleaning Cloth,
- Care Instructions for Headphones, Headphone Cables, and Leather Case
- AZLA SednaEarfit Xelastec SS | MS | M
- UM Silicone Ear Tips S | M | L