Brainwavz BLU-300 Review

Brainwavz BLU-300 Review

Highly-regarded for their range of accessory earpads and headphone storage options, Brainwavz Audio has been turning heads with two successful earphones – the BLU-100 and BLU-200.  Today, however, I’m testing their newest earphone – the BLU-300.  Retailing for an enticing $39.50, this neckband-style wireless earphone boasts a handful of helpful features.  But just how good can it be?

Brainwavz BLU-300 Review

Brainwavz BLU-300 Review

The Brainwavz BLU-300 comes with a minimal amount of accessories in a plain, unpretentious cardboard box.  In addition to the earphones and a charging cable, you will also find three pairs of eartips and a product manual.

Featuring a lightweight neckband-style design, this earphone wears comfortably for long periods of time.  On the right arm of the neckband, there are playback and volume controls, as well as a micro-USB charging port.

The earpieces themselves utilize an angled, ergonomic fit that sits securely in my ears – even when engaged in strenuous activities like running out of our review office to grab a coffee, or riding a swivel chair down a flight of stairs when my boss has left for the day.

On top of this, the earphones are sweat- and water-resistant, so they will hold up to some seasonal strife.

Battery life measures at a decent 6-8 hours for continuous use, while standby time stretches out to 250 hours – and all of this from a 2-hour charge time.


Frequency Range:  20-20,000 Hz
Nominal Impedance:  16 ohms
Sound Pressure Level (SPL):  102 dB

As you can see from these specs, the Brainwavz BLU-300 offers a fairly standard frequency range and a low nominal impedance perfect for use with phones or tablets.  Sound pressure measures a fairly standard 102 dB, and you should have no problem achieving excellent volume with this earphone.

Low End

Accurate if a little subdued, this low end delivers good fidelity.  Control also seems fairly on-point, as there is little bleed in this part of the frequency range.  This results in a clear, concise sound punctuated by a strong and emotive bass.


In the midrange, the BLU-300 delivers a full, articulate, and contrasting sound.  Surprisingly free of compression or distortion, these mids handle tricky vocals and instrumentation with ease, supplying an intoxicating and impressive listening experience.

High End

Here the BLU-300 shows off good detail with excellent fidelity.  Slightly rolled off in the highest high frequencies, the sound here offers a relaxed smoothness that meshes well with the lows and highs.  Indeed, the overall resultant sound is at once a little warm but still deep and well-defined, and it’s hard not to love the sound profile formed by these highs.


Despite being a $39.50 wireless earphone, the BLU-300 harbors a modicum of depth and hints of spacing and placement.  While not as stage-y as a pair of over-ear headphones or an open-back headphone, this earphone still adds a smattering of dimension and realism to almost any track I throw at it.


If you’re a fan of neckband-style wireless earphones, the BLU-300 is hard not to recommend.  Sure, there are better, higher-quality options out there (models from Sennheiser and RHA come to mind), but this is a great entry-level model for the casual listener or exercising audiophile sans budget.

For those hankering for more bass, the impressive JBL Endurance Sprint at just $50 may offer a similar level of detail.  This model also has similar battery life and sweat resistance, but with slightly more low end emphasis, too.

Final Analysis

With a low price of just $39.50, the Brainwavz BLU-300 offers a competent sound in a durable and comfortable package.  From a pure audio standpoint, this earphone offers some head-turning performance, but as a sports earphone, the BLU-300 takes the cake.

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Carroll is a headphone junkie residing in Brooklyn. He's a huge fan of Grado, UK hip hop, and the English Language in general. When not testing audio equipment or writing, you'll find him taking photographs or fiddling with circuit boards. You can contact him at