Technics EAH-AZ60 True Wireless Earbuds Pros and Cons

The Technics EAH-AZ60 True Wireless earbuds deserve any audiophiles’ attention for their industry-leading design and were launched in Oct 2021.

The Technics EAH-AZ60 True Wireless earbuds have interesting new features such as 4-microphones on each earbud for the clear sound transmission and a unique sound driver design for audio quality. However, there are drawbacks that may or may not affect every user.

Pros and Cons

  • Industry-leading 8 microphones (4 per side)
  • By far the few earbuds that support LDAC codec, besides the common AAC and SBC
  • Dual hybrid noise cancellation with feedback and feed-forward noise-cancellation microphone
  • 8mm driver housed in acoustic chamber delivers sound through a harmonizer
  • JustMyVoice technology amplifies the voice and minimizes surrounding sound with a voice detector
  • Advanced wind noise reduction
  • Transparency mode (ambient awareness)
  • Industry-first 7 sizes of ear gel for ultimate fit
  • The charging case does not support wireless charging
  • Each earbud in mono mode can only perform operations available on the side used
  • There is no auto-pause when the earbud is removed from the ear
  • Cannot power off using earbuds directly
  • No sleep mode or auto-power off
  • No Qualcomm aptX codec support
  • Quite expensive ($216 USD)

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What is a Harmonizer?

This is the issue when manufacturers try to create hype using a less-used term and we are left guessing what on earth is that all about. We could not find the definition but according to the dictionary did say the harmonizer is a device that electronically duplicates a signal at a different pitch or different pitches. 

Then according to Wikipedia, the harmonizer is a type of pitch shifter that combines the pitch-shifted signal with the original to create two or more notes in harmony. In digital recording, the same function is achieved through digital sound processing.

So then, what is the difference between the Harmonizer and Equalizer?

The equalizer adjusts the volume of different frequency bands in an audio signal.

Then the next question we may ask is whether frequency and pitch are the same concepts? They are different terms but are strongly related.

Pitch refers to a perception property of sound which can be measured by frequency. So a high pitch sound will mean that the sound has a high frequency, and vice versa for low pitch sound.

It is like saying a fast car travels at a high speed, where the perception of “fast” is quantified by “speed”. For example, we feel that the car is moving very fast, and the speed is 220 km/h.

In conclusion, the harmonizer works like a hardware equalizer that combines the different frequency bands.


So far the other earbuds we reviewed that has the LDAC are the Sony WF-1000XM4 earbuds, which makes sense because LDAC was developed by Sony.

What makes LDAC codec special is that it is high-resolution audio that combines lossy and lossless audio technology and supports up to 990 kbps bitrate and 32 bits audio. The downside is a higher power consumption for Bluetooth earbuds as shown in the Tech Specs below.

Technics EAH-AZ60 support LDAC but not Qualcomm aptX which is being supported by Android smartphones using the Qualcomm Snapdragon mobile platform. For most users, the universal SBC or the AAC should suffice, and hence the presence of LDAC or absence of aptX should not be a showstopper or major drawback. We accept that audiophiles and technologists would disagree as some would feel more is better.

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Attention Mode vs Ambient Mode

The website indicates Attention Mode and Ambient mode, but there is only the “Ambient” mode in the operating manual.

Technics EAH-AZ60 Switching NC and Ambient Sound

The “Ambient” mode is essentially the “Hear through” mode that is found on all earbuds, while the Attention Mode should refer to the Noise Cancellation mode. This is quite a standard implementation for most earbuds and the only difference is how manufacturers call them.

However, the Technics EAH-AZ60 has an advantage because they have a voice detector that would amplify the voice spoken instead of the surrounding sound. This is achieved through a 4th microphone on each earbud and the technology is called JustMyVoice. There is no setting to activate this function as it works automatically.

Technics EAH-AZ60 Microphones

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Operating Modes

One of the items that we are comparing is the touch sensor operations because when the earbuds are used in mono mode, they can only perform operations available on the side used. This means that the left side is required if you need to raise or lower the volume, while the right side controls the track forward or back. Some operations are available on both earbuds (see below).


When compared to button options, we feel that touch operations like triple-tap rapidly to raise the volume or back a track, could require some getting used to. Eventually, the natural action could be “continuous quick tapping” instead of just a “triple” tap to quickly get the volume up.

We are used to using button operations Jabra and Klipsch earbuds, where the maximum is double button press instead of tapping.

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Battery Life and Power

The battery life of the Technics EAH-AZ60 True Wireless earbuds is on par with the other brands in general. For example, it has the same 85mAh battery capacity as the latest sports flagship JBL Reflect Flow Pro.

In terms of power management, we feel that they are missing some important functions:

  • No autopause when earbuds are removed from ears
  • No sleep mode and auto-off
  • There is no way to power off the earbuds by themselves.

The only way to turn off the earbuds power is to put it back into the charging case.

However, one thing we like about Technics is the clarity of the battery life based on the different audio codecs. Based on the specifications, AAC has the lowest power consumption while LDAC has the highest. This would apply to other brands of earbuds because most of them only specify the maximum battery life.

Thanks to Technics, we now know why we do not always get the maximum battery life as stated by earbud manufacturers.

Technics EAH-AZ60 Silver

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Final Thoughts

The Technics EAH-AZ60 True Wireless earbuds may not have all the features when compared to other earbuds. However, there is a strong focus on audio quality and noise handling, which are the primary functions for the earbuds. The design could set a new example for other brands to follow, especially for the sound driver and microphone design.

Detailed Specifications (including extracts from operating manual)

Release dateOct 2021
Physical Specifications
Size (each earbud)25.4 x 22 x 28.6mm
Weight (each earbud)7grams per side
Durability (IP Rating)IPX4 (sweat and water-splash)
Control TypeTouch
ColourBlack, Silver
Audio (Speaker)
Driver Type 8mm drivers housed in an acoustic chamber and delivers through a harmonizer
Audio CodecSBC, AAC, LDAC
Active Noise Cancellation (ANC)Dual Hybrid ANC (Noise allocation is the Attention Mode for human voice)
Transparency (Hear Through)– Natural Ambient Mode for surrounding sound.
FeaturesSupports LDAC™ high resolution wireless audio in 96 kHz/24 bit LDAC when connected by Bluetooth®.
Microphone per earbud4 (8 total)
Wind Noise Reduction Yes
FeaturesOne feedforward mic, one feedback mic, one voice detection mic and one talk mic.
JustMyVoice technology.
Fit and Comfort
Mono Mode
(Use either earbud)
Yes (limited controls)
Ear Gel7 sizes
Ear WingsNo
Auto Play/PauseNo
Bluetooth Version5.2
Bluetooth ProfileA2DP, AVRCP, HSP, HFP
Operating Range10m
Multi-point Connection2
SensorsVoice detection sensor
Voice AssistantAlexa, Siri, Google Assistant
Battery Life
Music Time (Earbuds)Approx. 7.0 hours
(Noise cancelling: ON, AAC)
Approx. 7.5 hours
(Noise cancelling: OFF, AAC)
Approx. 5.5 hours
(Noise cancelling: ON, SBC)
Approx. 6.0 hours
(Noise cancelling: OFF, SBC)
Approx. 4.5 hours
(Noise cancelling: ON, LDAC)
Approx. 5.0 hours
(Noise cancelling: OFF, LDAC)
Total Time + Charge Case Approx. 24 hours
(Noise cancelling: ON, AAC)
Approx. 25 hours
(Noise cancelling: OFF, AAC)
Approx. 22 hours
(Noise cancelling: ON, SBC)
Approx. 23 hours
(Noise cancelling: OFF, SBC)
Approx. 16 hours
(Noise cancelling: ON, LDAC)
Approx. 17 hours
(Noise cancelling: OFF, LDAC)
Standby Time9h (NC On)
Fast Charge 15min for 70min  (AAC)
or 45min (LDAC)
Charging Time 0-100% (Buds)2 hours
Sleep Mode (Auto-Off)No
Earbud Power-Off (Button)No
Charging Case
Connector TypeUSB-C
Charging Case Battery650 mAh
Charging Time 0-100% (Case)2.5 hours using 5V/0.5A
Wireless Charging TimeNA
Price and Warranty
Warranty (years)1
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