M5-TWS Custom

3D-printed Custom True Wireless Earbuds
The world's first custom-fit, 3D-printed TWS with the pinnacle of true wireless technology.
Regular price$699.99


M5-TWS Custom delivery lead time is 6-8 weeks after we receive your ear impression. Learn more here.

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ADV. M5-TWS Custom


Driver / Sound

PHPC dynamic driver


True Wireless Stereo



The Pinnacle of True Wireless Audio
The proprietary PHPC (Pressurized High-Purity Carbon) driver used in the M5-TWS Custom consists of the ultra-thin pressurized diamond-like carbon layer diaphragm which is both extremely rigid and light-weight, combined with the high-mass pure copper moving coil that maximizes the vibration stroke of the diaphragm. This unique pairing results in an improved overall resolution of the audio output from its 6.1mm diameter driver. M5-TWS Custom is tuned differently than its universal counterpart, as a reference-class sound that is more neutral and transparent. Resulting audio is high-fidelity unlike any true wireless earbuds that came before it.

World's First Custom-fit True Wireless IEM
The M5-TWS Custom is the world's first custom-fit true wireless earbuds that are crafted using the latest 3D-printing technology. Its complex contours are custom tailored to fit each individual's ear based on the customer's ear impression. Customers can ship their physical ear impression to our lab or send 3D scan of the ear impression via email.

Faceplate Charging
The M5-TWS Custom comes in a wide variety of shapes and sizes depending on the actual ear shape of each individuals. This means the universal charging solution had to be re-imagined. The charging port has been relocated to the earphone's faceplate, where a miniature DC charging port accepts charging via included USB-C cable.

Intuitive Touch-Control
Touch gesture control allows seamless operation of M5-TWS Custom and provide fluid and unobstructed user-experience.

All Day Battery Life
The M5-TWS Custom can play music up to 10 hours continuously with a single-charge. Combined with quick-charging, the M5-TWS Custom is your ideal all-day portable music companion.

APTX High Resolution Codec Support
The M5-TWS Custom implements the latest Qualcomm QCC3040 chipset, enabling APTX codec for high resolution music playback, and streamlining the pairing protocol that eliminates the need to reset the device for connection issues.



Driver unit 6.1mm PHPC (Pressurized High-Purity Carbon) reference-tuned dynamic driver
Impedance 16ohm+/-15%
Sensitivity 96dB+/-3dB at 1kHz
Frequency response 20Hz – 20kHz
Music time Up to 10 hours
Charging time 2 hours
BT version 5.2
Supported codec aptX / SBC
Connection distance 10M (33ft)
Input port DC to USB-C


What's Included

  • 1 pair of M5-TWS Custom earbuds
  • 1 CNC-machined aluminum carrying case
  • 1 DC to USB-C charging cable
  • 1 USB-C female to USB-A male adapter
  • 1 microfiber cleaning cloth


Frequency Response



User Guide

ADV. M5-TWS Custom User Guide

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