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Sub Miniature Cardioid Condenser Headworn Microphone, unterminated cable

  • Offers the ultimate in low-profile, high-performance audio
  • Features a rotating cardoid capsule housing with talk-side indicator
  • Ultra-lightweight and can be worn for hours without fatigue
  • Protected by a highly durable Parylene coating
  • Extremely intelligible natural audio
  • Comes equipped with AT8464 Dual-Ear Microphone Mount

£338.00 (inc. VAT)

BP894c BP894c BP894c BP894c BP894c BP894c



Warning : The BP894c comes unterminated without power module
Audio-Technica’s innovative BP894c MicroSet® offers the ultimate in low-profile, high-performance audio. The BP894c features a rotating capsule housing with talk-side indicator for use on either ear and perfect polar pattern placement. The MicroSet BP894c takes headworn microphones to the next level, by allowing the cardioid capsule to be aimed directly at the sound source. The uniform pickup pattern provides excellent rejection of outside noise, with exceptional gain-before-feedback when used with live sound systems and stage monitors.

Delivering clear and accurate sound in an inconspicuous package, the ultra-lightweight BP894c hooks securely behind either ear and can be worn for hours witout fatigue. For maximum stability and comfort, the included AT8464 dual-ear microphone mount converts the MicroSet to a dual-ear-worn unit.

  • Features a rotating capsule housing with talk-side indicator for use on either ear and perfect polar pattern placement
  • Provides superior intelligibility and clean, accurate reproduction for the most demanding house of worship user, lecturer, broadcaster or theatre performer
  • Well-controlled cardioid directivity for better protection against feedback and excellent attenuation of unwanted noise
  • Inconspicuous, lightweight headset with capsule diameter of just 2.8 mm is ideal for applications requiring minimum visibility
  • Ergonomic under-ear design—flexible, lightweight contoured loop hooks behind the ear for an ultra-secure, comfortable fit with or without glasses
  • Comes equipped with AT8464 Dual-Ear Microphone Mount that converts single ear-worn MicroSet to a dual-ear-worn unit for maximum stability and comfort
  • High-pass filter on power module provides a steep low-frequency attenuation to improve sound pickup without affecting voice quality
  • Comes unterminated - ready to solder
  • Wired or wireless in the same model! The cable on the wired model is terminated with a locking 4-pin HRS connector, which plugs directly into any Audio-Technica wireless system but can also be used with the AT8539 power supply module, for wired applications
  • Numerous accessories: Hard transport case, two windscreens, anti-moisture and cable clamp protection. The wireframe model also includes a belt clip to secure the power supply to the belt or pocket of the user.
  • Available in black and beige: BP894c – less power module; 55" (1.4 m) cable, unterminated; BP894c-TH – same as BP894c, but in "theatre" colour (beige);


With its ultra light weight of 2g and a capsule diameter of 2.8 mm, the BP894c headworn microphone is one of the lightest and discreet audio professional market.


The AT8464 Dual-Ear Microphone Mount allows you to convert the BP894c from a single ear-worn MicroSet to a dual-ear worn unit for maximum stability and comfort. The microphone can be worn to the left or right. The headband is adjustable and suitable for both adults and children.


Unique in its genre, The BP894c has a swiveling capsule of Ø2.8mm, providing direct aim at the mouth of the user, for unmatched intelligibility. The cardioid directivity guarantees better protection against feedback and reduces unwanted ambient noise (be it from stage monitor or front speakers). The capsule also allows the BP894c to pivot enabling wear on either ear. Simply adjust the support as desired for comfortable wearing, and orient the capsule towards the mouth. A small dot marks the active side of the capsule.



The AT8464 Dual-Ear Microphone Mount converts a single ear-worn MicroSet to a dual-ear-worn unit for maximum stability and comfort on all head shapes.


At barely bigger than a pinhead, the cardioid capsule of the BP894c delivers natural and intelligible sound.

ACCESSOriES included

The BP894c comes with a clothing clip, two windscreens, two capsule protections and moisture protection.

unterminated Model

The BP894c comes unterminated on a 1.4m long shielded cable split into two conductors.

Element Fixed-charge back plate, permanently polarised condenser
Polar Pattern Cardioid
Frequency Response 20 - 20,000 Hz
Open Circuit Sensitivity -49 dB (3.5 mV) re 1V at 1 Pa
Maximum Input Sound Level 135 dB SPL, 1 kHz at 3% T.H.D.
Signal-to-Noise Ratio 63 dB, 1 kHz at 1 Pa
Weight Microphone, boom & earpiece: 2.0 g (0.07 oz)
Dimensions Microphone: 6.5 mm (0.26") long, 2.8 mm (0.11") diameter
Boom: 107.4 mm (4.23") long, 1.09 mm (0.04") diameter
Cable 1.4 m (55") long (permanently attached to microphone), 1.6 mm (0.06") diameter, 2-conductor shielded unterminated cable without connector
Accessories Included AT8464 dual-ear microphone mount; AT8440 cable clip; two AT8163 windscreens; moisture guard; carrying case


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Sub Miniature Cardioid Condenser Headworn Microphone, unterminated cable

Name Filetype Filesize
BP894 Datasheet PDF 509 KB
BP894 Polar Pattern JPG 81 KB
BP894 Frequency Response JPG 98 KB

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Trusted by industry professionals

Trusted by industry professionals

Whether it’s on the boardroom table, the stage or in the studio, Audio-Technica products are trusted time and again by industry professionals looking for reliable, lovingly developed audio products for all budgets.

It’s Audio-Technica’s commitment to innovation, customer service and meticulous design that ensure professionals turn to us to provide solutions in conferencing, houses of worship, broadcasting, live sound, recording studios and beyond.


50 Years of Devotion to music

50 Years of Devotion to music

For over 50 years Audio-Technica has worked alongside leading figures in sports and music broadcast to develop and hone a range of products that deliver on the highest level.

Audio-Technica have developed and delivered products to power the Grammys, World Cup, Super Bowl, Commonwealth Games as well as every Summer and Winter Games from Atlanta 1996 to Sochi 2014.


A Legacy in Innovation

A Legacy in Innovation

Founded in 1962 by Hideo Matsushita, Audio-Technica positioned itself immediately as a leader in the manufacture and design of innovative audio products.

Its expertise in innovation quickly spread to various new fields and led to the development of tone arms, microphones and headphones. Audio-Technica soon became a benchmark in those fields. Making history.

A self-made man and audiophile, Hidéo Matsushita was the former Director of the Tokyo Museum of Modern Art. It all started in his workshop, with the hand crafting of stereo cartridges. 50 years later, Audio-Technica has become a global leader in audio innovation.


A Passion for Listening

A Passion for Listening

Humility, passion, creativity and expertise in sound are the core values behind Audio-Technica’s legacy, greatly inspired by its founder - whose imprint on the company’s philosophy is still felt today.

Audio-Technica’s passion for listening evolved in the 70’s, when it started designing headphones, building upon a legacy in innovation, meticulous engineering and artistic design.

Today, Audio-Technica’s audio products have become globally synonymous with consistently high sonic performance paired with impeccable build construction and artistic design.


Two Year Limited Warranty

Two Year Limited Warranty

All Audio-Technica products come with a two year warranty as standard meaning you can enjoy your product safe in the knowledge that you’re covered.

All Audio-Technica products purchased from Audio-Technica Europe are guaranteed for two years from the date of purchase to be free of defects in materials and workmanship. In the event of such defect, the product will be repaired or replaced without charge*.

(* T&Cs apply)