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© 2020 MAS AUDIO SCIENCE All rights reserved. 

X5h Headphone

Bluetooth Combo



Combining style, elite build quality and extremely linear response, the MAS X5h delivers audiophile-class music for smartphones and mobile media players. Featuring high audio fidelity and musicality with extended 5Hz to 50kHz frequency response, the MAS X5h has been awarded the Hi-Res Audio Headphone Certification by the Japan Audio Society. The X5h is ready for mobile use,featuring a foldable design and compatibility with MAS XX accessories including the XX Bluetooth Cable.

High Resolution Audiophile

Grade Drivers

The new 40mm dynamic drivers combine proprietary diaphragms and super lightweight aluminum-copper voice coils to produce precise mid, high and extended bass.

Core Array Technology™

Core Array Technology™ aligns all components of the driver to increase efficiency, reduces distortion and produces unrivaled sound quality along with spacious soundstage.

Custom Designed
Powerful NdFeB 
Voice Coils
Proprietary Multiply 
Acoustic Chambers
Hi-Fi Damping Design

Cable Detachable Design

The X5h with cable detachable design and MMCX connectors allows you to upgrade or swap the headphone cable. You can even upgrade the X5h to wireless with the optional MAS XX Bluetooth Cable or to digital headphone with the optional MAS XX USB-C Headphone Cable.

XX Audio Cable for Professional Audio

The X5h comes with an audiophile grade silver-coated OFC cable to link your professional audio equipment such as media players and headphone amplifiers to deliver more detailed treble, refined mid-range and rich bass.

XX Remote Cable for Mobile Devices

The X5h comes with a remote cable with inline microphone to allow you to make calls and select tracks on your mobile devices. A superior MEMS microphone delivers incredibly clear voice quality.

(Note: Please note that some mobile devices may not fully support the remote because of different Apps or operation systems.)

Elite Build Quality

The X5h features solid metal parts, leather-like texture, and anti-fingerprint surface featuring the highest build quality.

Foldable, Lightweight

and Comfortable

Thanks to super lightweight, ergonomic design with premium synthetic headband and ear-pads, the MAS X5h remains comfortable even when used for extended periods. The MAS X5h is foldable making it easy to stow and carry.


Bluetooth Cable

​Specifically designed to efficiently drive MAS X-Series Earbuds and Headphones, featuring superior semiconductors for Bluetooth connectivity and audio amplification.

Patented Bluetooth Cable Design

MAS X-series headphones can be transformed into wireless headphones with the MAS XX Bluetooth cable. Swap between wired and wireless with ease, with the only Bluetooth design in the world to allow an analog connection if you run out of Bluetooth power.

Design for the MAS

X-Series Headphones

The MAS XX Bluetooth Cable includes a proprietary amplifier specially designed to drive the MAS X series headphones efficiently.

More than 12 hours listening time

The MAS XX Bluetooth Cable is equipped superior semiconductors and electronics design to provide you with more than 12 hours continuous listening time on a single charge.

Mainstream Bluetooth Technology

Equipped with the Bluetooth version 4.2 technology, the MAS XX Bluetooth Cable provides high quality audio transmission with high quality wireless components.

Remote Control with

Inline Microphone

The remote control of MAS XX Bluetooth Cable allows you to adjust volume, adjust tracks, select play/pause, select call send/end and activate voice assistant on smart devices.(Note: Please note that some mobile devices may not fully support the remote because of different Apps or operation systems.) The high sensitivity inline microphone delivers clear speech quality.

The Patented MAS Headphone 


Create Infinite Possibility

All MAS X-Series Headphones and Earbuds are compatible with separate MAS XX cables which offer a range of connection and connectivity options for today's mobile and audio devices.


Inbox MAS XX cables

  • MAS XX Remote Cable: The MAS XX Remote Cable embedded MEMS microphone allows you to make calls and select tracks on your mobile devices.


  • MAS XX Audio Cable: The MAS XX Audio Cable allows you to link professional audio equipment such as media players or amplifiers with maximum audio fidelity.

  • MAS XX Bluetooth Cable: The MAS XX Bluetooth Cable can upgrade your MAS X-Series headphones as Bluetooth headphones to connect your mobile devices wirelessly.


​​Optional MAS XX cables


  • MAS XX USB-C Headphone Cable: The MAS XX USB-C Headphone Cable which is installed MAS proprietary high resolution Digital Audio Converter (DAC) and 3D virtual surround processor connects to your mobile devices' USB-C port to deliver high quality digital music and exceptional surround sound for games and movies through your MAS X-Series headphones.


Please connect and disconnect the MMCX

cables vertically to the jacks or earbuds.


Driver Unit - 40mm Dynamic Driver

Impedance - 32Ω

Frequency Response - 5-50,000Hz

Sensitivity - 102db/mW(@1kHz)

XX Bluetooth Cable

Bluetooth Version - Bluetooth 4.2 Version

Operating  Frequency - 2.4 ghz

Distance Range - 10 Meters

Play Time - More than 12 Hours on a single charge

Charger - USB DC 5V

Accessory Kit

  • A silver-coated OFC cable

  • A remote cable with MEMS microphone

  • A hard shield carrying case

  • A soft carrying pouch

  • A product warranty card