Overview

The beyerdynamic AMIRON 300 are true wireless in-ear earphones with active noise cancellation, announced at IFA 2024 and released in October 2024. beyerdynamic is a German audio manufacturer with a century-long history in professional microphones and headphones. Key features include Bluetooth 5.3 with SBC, AAC, and LDAC, a six-microphone ANC system with adjustable levels and an adaptive mode, a 5-band parametric EQ via the beyerdynamic companion app, Qi wireless charging, IP54 water and dust resistance, and up to 38 hours total battery life (10 hours per earbud without ANC, 28 hours from the case). The current US market price is USD 149.99, reduced from an original MSRP of USD 279.99 [1][4].

Scientific Validity

\[\Large \text{0.4}\]

Manufacturer-published specifications state THD of less than 0.2% at 100 Hz and less than 0.3% at 1 kHz [2]. These fall in an intermediate range for earphone distortion performance. The manufacturer-stated THD at 500 Hz of less than 1.5% represents poor distortion performance for earphones [2]. No independent standard-rig measurements are available from specialized acoustic laboratories, leaving all three figures as unverified upper bounds with no test conditions stated.

Frequency response measurements from SoundGuys show the AMIRON 300 closely tracking a preference target curve, with a slight bass emphasis around 100 Hz, a treble elevation between 4 and 8 kHz, and a roll-off above 8 kHz [3]. No numeric deviation figure from the target was published. ANC and passive isolation performance were assessed by SoundGuys testing; quantitative dB attenuation values were not published by the measurement source. S/N ratio is undocumented by both the manufacturer and any third-party source.

The score reflects a manufacturer THD specification at 500 Hz that represents poor distortion performance, with no independent measurement data available to verify or refute the published figures.

Technology Level

\[\Large \text{0.3}\]

The AMIRON 300 uses a fully standard 2024-era TWS platform. Bluetooth 5.3 with LDAC and a six-microphone ANC system were established implementations in the premium TWS segment at the time of this product’s October 2024 launch, directly comparable to competing products from Sony and Sennheiser released in 2023. No proprietary patents, no in-house driver technology, and no licensable innovations have been identified for this product [1]. The STELLAR.45 45mm driver developed in-house by beyerdynamic was reserved exclusively for the simultaneously-launched AVENTHO 300 over-ear headphones; the AMIRON 300 uses a third-party-sourced 10 mm dynamic driver. The ANC and Bluetooth SoC vendors are not publicly disclosed, providing no basis for technology differentiation.

The complete technology stack is immediately replicable by any TWS manufacturer with no meaningful competitive moat or technical differentiation.

Cost-Performance

\[\Large \text{1.0}\]

This site evaluates based solely on functionality and measured performance values, without considering driver types or configurations.

The beyerdynamic AMIRON 300 is currently priced at USD 149.99 [1][4]. Six lower-priced candidates were evaluated to determine whether any offered equivalent-or-better user-facing functions and measured performance.

The Soundcore Liberty 4 NC (~USD 59.99) was disqualified for inferior measured distortion performance as well as materially inferior passive isolation compared to the AMIRON 300, based on measurements from the same third-party source [3]. The Soundcore Space A40 (~USD 65) was disqualified because distortion and frequency response measurements were not published for that product, making equivalence verification impossible; passive isolation was also inferior on the same measurement platform [3]. The EarFun Air Pro 4 (USD 89.99) demonstrated inferior ANC performance and inferior passive isolation compared to the AMIRON 300 on the same measurement platform [3]. The Jabra Elite 5 (~USD 75) and Nothing Ear 2024 (~USD 149) were disqualified for insufficient ANC-on battery life (approximately 5–6 hours and 5.2 hours respectively, versus the AMIRON 300’s 7 hours). The Moondrop Space Travel 2 Ultra (~USD 40) was disqualified for materially inferior total battery capacity with case (24 hours versus 38 hours) and unconfirmed wireless charging support.

No lower-priced product with equivalent-or-better measured ANC performance, passive isolation, and battery life was identified. CP = 1.0

This result is provisional: comparison data relies on measurements from SoundGuys [3] due to the absence of independent standard-rig laboratory measurements for the AMIRON 300. If standard-rig data becomes available, particularly for distortion and passive isolation, this evaluation should be revisited.

Reliability & Support

\[\Large \text{0.7}\]

beyerdynamic provides a 2-year warranty covering manufacturing defects; warranty repairs include coverage for the remainder of the original warranty period or 180 days from the repair date, whichever is longer [1]. The company operates a global support infrastructure with dedicated regional divisions in North America, Europe, Asia/Pacific, and Greater China, enabling in-region service access. Firmware updates are delivered via the beyerdynamic companion app, updated as recently as April 2026, reflecting active support appropriate for a DSP-equipped wireless product.

No recalls, service bulletins, or documented hardware failures were identified as of this review date. Some users have reported occasional fit instability due to the matte plastic housing surface and incidental touch control activation when readjusting earbuds — design characteristics rather than manufacturing defects.

The score is bounded by the standard 2-year warranty period rather than 3 or more years, the absence of documented long-term internal component availability, the lack of special support services, and no statistical failure rate data to support further positive adjustment.

Rationality of Design Philosophy

\[\Large \text{0.3}\]

The AMIRON 300 uses a rational modern technology platform — Bluetooth 5.3, DSP-based EQ, multi-microphone ANC, standard at-scale manufacturing — with no pseudoscientific elements such as tube amplification, R2R architectures, or occult audio accessories. This positive foundation is offset by three substantive issues.

First, the original USD 279.99 MSRP included a significant non-functional cost component. The price has been reduced to USD 149.99 — approximately 47% — with no corresponding change in specifications or feature set, confirming that a material share of the original price was attributable to industrial design aesthetics investment and brand premium rather than audio performance [1].

Second, the AMIRON 300 does not include the MOSAYC hearing-test-based sound personalization technology used in prior beyerdynamic wireless models, replacing it with a standard 5-band EQ [5]. This is a functional regression relative to earlier premium wireless offerings from the same manufacturer and weakens the rationality of the product-development direction.

Third, the product markets LDAC codec support and a 20–40,000 Hz frequency response specification as indicators of superior audible quality. LDAC at 990 kbps operates as a transparent codec, and its audible advantage over AAC under controlled listening conditions is not scientifically established. Frequency response extension beyond 20 kHz similarly does not translate to audible improvement for human listeners. The “audiophile TWS” and “studio DNA” positioning therefore rests on claimed audible benefits that are not supported by controlled evidence [1][2].

Advice

The AMIRON 300 at USD 149.99 is the lowest-priced product identified that achieves its specific combination of ANC performance, passive isolation, and battery life. The critical limitation is the complete absence of independent standard-rig measurements: the manufacturer-stated THD at 500 Hz (less than 1.5%) would represent poor distortion performance for earphones if confirmed, and no independent data exists to verify or refute this figure. Buyers for whom independently-confirmed distortion performance is a priority should consider alternatives for which established laboratory measurement data is publicly available. At USD 149.99, the AMIRON 300 is a reasonable option if ANC effectiveness and passive isolation are the primary selection criteria and the buyer is comfortable with the current measurement data limitations. Purchase at the original USD 279.99 MSRP is not recommended.

References

[1] beyerdynamic North America - AMIRON 300: True Wireless Earphones with ANC - https://north-america.beyerdynamic.com/p/amiron-300 - Accessed 2026-05-20

[2] beyerdynamic - AMIRON 300 Official Datasheet (PDF) - https://api.beyerdynamic.de/amfile/file/download/file/1794/ - Accessed 2026-05-20 - Manufacturer THD and frequency response specifications; test conditions not stated

[3] SoundGuys - beyerdynamic AMIRON 300 earbuds – testing data and review - https://www.soundguys.com/beyerdynamic-amiron-300-review-135981/ - Accessed 2026-05-20 - Frequency response, ANC, and isolation measurements (HEAD acoustics measurement system)

[4] Amazon US - beyerdynamic AMIRON 300 True Wireless Noise Cancelling Earbuds - https://www.amazon.com/beyerdynamic-300-Cancelling-Multipoint-Cancellation/dp/B0DCC6GQT6 - Accessed 2026-05-20

[5] beyerdynamic - MIY App - MOSAYC Sound Personalization - https://global.beyerdynamic.com/mosayc - Accessed 2026-05-23 - Official description of MOSAYC hearing-test-based personalization and compatible AMIRON WIRELESS models

(2026.5.23)