NuraTrue 660 – personalised sound, Bluetooth, ANC, earphones (AV review)

NuraTrue 660 analyses your hearing then adapts music, speech, podcasts – any audio – to your ears. It is an Aussie invention – developed by Doctors Kyle Slater, Luke Campbell, and Dragan Petrovic, with a wealth of experience in hearing science, electrical engineering, and medicine.

No – they are not your typical earphone. You can use them as such, but the real purpose is to develop your sound profile and use it to reinforce the frequencies you have trouble with. Does it work? Well, 80% yes and 20% no.

They are a capable pair of earphones in their own right but not in the flagship class like Sennheiser, Bose and Sony.

Nuratrue first impression

They are large, heavy and round with a silver logo – not discrete.

What you get

  • BT 5.0 with SBC, AAC and aptX (not high res)
  • Battery 6 hours plus 18 in the case. USB-C charge (no Qi)
  • Noise cancellation – on/off/conversation – fairly basic mix of passive and active
  • Auto pause (can alter this to one bud use)
  • Transparency (conversation) mode
  • Immersion mode – basically bass boost (dial it back)
  • Touch control custom setting
  • Voice assistant compatible
  • Four size ear gels and extra wingtips
  • IPX4 – sweat resistant
  • App


  • Download the Nura App
  • Create account
  • Once charged, take them out of the charge case, place them in the ears and pair via BT.
  • Return the App
  • It plays ear fit tones – its vital to get good sound isolation and a comfortable fit
  • Personal profile. It plays a set of otoacoustic emissions for about a minute. The mic inside each bud measures the feedback. You can create three profiles. The image below shows (what I already knew) that the left ear is less sensitive than the right and that I need help for the higher frequencies where sibilance is an issue.

I ran the tests three times with different ear gels and finally got the best fit and passive noise isolation. But there is no way to adjust a profile except to delete and start again.


Closed-back means a narrower sound stage – inside your head. Left/right separation is OK, but there is not that concert hall depth that you can experience with other brands.

Think of the profiling as your personal Equaliser (as there is no separate one). You must remember that all music is adapted to your sound profile. So, it is not necessarily what the artist intended. I get a far better sound from Sennheiser Momentum or Sony WF-1000XM4.

Immersion mode is too artificially bassy, and I backed it off in the App. The musically important mid-and-high-bass are there. Mids seem a little recessed. Treble was crisp.

I can’t help feeling that this manufactured sound had lost some authenticity. Of course, you can use the neutral mode if you wish, and it gets closer to the natural sound. But you lose the point of the Nuratrue – personalised sound.


Practical rather than totally effective. It is not close to the standard of Sony, Bose, or Sennheiser, but it does cut out voice frequencies quite well. I can hear the heavy rain in conversation mode and nothing with ANC.


Volume was a little low, and the person at the other end commented on the lack of tone in my voice. I could only find two mics on each bud – one external and one internal, so the mics are doing double duty for voice and ANC.

Pulsatile tinnitus, itchy ear, and hay fever sufferers beware

Due to the closed-back and sound isolation, Pulsatile tinnitus (hearing your heartbeat in your ears) sufferers cannot use these. While they are comfortable to most, they are not for you if you have hay fever or itchy ear. And if you produce a lot of wax, your hearing can vary from the profile, so use ear wax remover regularly.

CyberShack’s view – NuraTrue 660 is not for normal hearing folk

Sure, the non-hearing impaired can use them, but you can get better sound and ANC for $299.

  • Jabra Elite 7 Pro
  • Beats Fit Pro
  • Samsung Galaxy Buds Pro
  • Sennheiser Momentum 2 (on runout and the absolute choice for audio enthusiasts)
  • Or spend $90 more to get the OPPO Enco X Dynaudio or Sony WF-1000XM4

If you are hearing impaired, these may bring back some fond memories of your favourite classics – albeit the manufactured version.

Rating: 8/10


  • Personalise audio helps hearing impaired
  • Noise cancellation is adequate
  • Set up is easy


  • Closed-back design is not suitable for Pulsatile tinnitus sufferers
  • Heavy and not all that comfortable for all-day use
  • Fairly conspicuous
  • Often very slow to BT re-pair
  • Need to create a new profile if hearing changes

Nuratrue detailed specs and tests

   POD (not in-ear canal)Round flat outside ear
   BudsIn-ear canal
   Sports (with wing)Two types of removable wingtips
    IP ratingIPX4
   Ear tip typeFour ear gel sizes
      CodecsSBC, AAC, aptX (not LL/HD or Hi-res)
      A2DP, AVRCP, HFPYes
   True Wireless (Qualcomm)Yes
   Google Fast PairNo – standard BT and then the App – can be quite slow
   Windows Swift pairNo
   Weight each7.4g
   Dimensions W x H x D mm24.8 x 24.8 x 21.9
   TypeTouch volume, track, voice assistants, ANC
   AutopauseOn one or both buds
   ANCOne level – always on unless switched to conversation mode
  Ambient passthroughConversation
   Conversation modeYes
   Game modeNo
   Speaker size mm?
   Frequency responseTested 20Hz to 20kHz
   Driver sensitivity 1kHZ/1mw (dB)?
BATTERY (unless cabled) 
   mAh in each bud?
   mAh in case?
   Case charge type (USB or Qi)USB-C
        Case size/weight72.4 x 30.2 x 35mm x 37.1g
   Charge voltage rating?
   Battery time with ANC on6 hours (tested)
   Additional battery time in case hours18 hours
   Charge time case2+ hours
   On each bud2
   OtherAI mic noise cancellation
   TypeGoogle, Alexa
   FeaturesEarbud fit test (for ANC)
   EQHearing test
   Find my budsNo
   OtherImmersive (bass boost) is overpowering
 OS supportAndroid or IOS app and will then work on any BT device
SPECIAL FEATURESHearing test and personalisation
   WebsiteProduct page
   Warranty12 months
   FromNura and major retailers
Accessories includedFour gel sizes, two ear tips, charge cable
PRO 1Personalise audio helps hearing impaired
2Noise cancellation is adequate
3Good battery life
4Easy setup
CON 1Closed-back design is not suitable for Pulsatile tinnitus sufferers
2Heavy and not all that comfortable for all-day use
3Fairly conspicuous
4Often very slow to BT re-pair
5Need to create a new profile if hearing changes
Love the fit and hearing test, but the App is otherwise limited
Unless you need this, there are better value earphones
Manufactured music can lack that sparkle
Ease of use9
The App does it all
Overly large round external pads with garish logo and conspicuously stick out
Score /108

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Nruatrue 660








Ease of use





  • Personalise audio helps hearing impaired
  • Noise cancellation is adequate
  • Good battery life
  • Easy set-up


  • Closed-back design is not suitable for Pulsatile tinnitus sufferers
  • Heavy and not all that comfortable for all-day use
  • Often very slow to BT re-pair
  • Need to create a new profile if hearing changes
  • Fairly conspicuous