KZ Bluetooth Cable – Review

KZ Bluetooth Cable

KZ Bluetooth Cable

| Bluetooth |


🎧 We are reviewing the KZ Bluetooth Cable, an insanely affordable cable that can make wireless any earphone with a bi-pin connector.

KZ has just released a new waterproof Bluetooth cable and this reminded us that we had the 1st version sitting in the review queue for more than a year already.

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KZ Bluetooth Cable Review

Tests & Scores


Operation & Control

The remote of the KZ Bluetooth cable has 3 buttons that allows you to do the following:

Play/Pause Button:

  • A 3 second press and hold: Power On
  • A 5 second press and hold: Power On and set to pairing mode
  • A single press: Play, Pause music
  • A 1 second press and hold: Power On
  • 3 second press and hold while turned ON: Power off
  • Turned ON and while in standby with no music or call: 1 second press and hold activates Siri or voice commands.

Volume UP Button:

  • A single press: Volume up by 1 level
  • A 1 second press and hold: Skip to next song

Volume Down Button:

  • A single press: Volume down by 1 level
  • A 1 second press and hold: Previous song

Calls Commands:

  • 2x Press of Play/Pause Button: Redial last number
  • Long press of Play/Pause Button: Reject call
  • Press of Play/Pause Button: Hang up call
  • Any button: Answer call

LED Status Light: The KZ Bluetooth cable has a LED light right below the Volume Down button. This LED will inform the status of the module, like: Red and blue flashing (pairing mode), etc.

Charging: To charge the KZ Bluetooth cable you need to pop-out the rubber gasket covering the micro USB connector and plug the charging cable to your computer or a USB charger. A full charge takes 1.5 hour and provides 3 to 4 hours of continuous music playback.

KZ Bluetooth Cable
KZ Bluetooth Cable


Accessories & Packaging

The KZ Bluetooth Cable comes inside a small square box that resembles the packaging of many Xiaomi headphones. Inside you will get a flat rubberized charging cable.



Design of the KZ Bluetooth Cable is simple and clean, with an all-black color, rounded, rubberized cable and a small module/remote/battery.

The end of the cable, near the bi-pin connector, is a memory wire that can be molded to adapt to any ear's shape.

The module/remote/battery has a 3-button control with dedicated volume buttons which makes them easy to operate.


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KZ Bluetooth Cable
KZ Bluetooth Cable
KZ Bluetooth Cable
KZ Bluetooth Cable



KZ Bluetooth Cable weight in Ounces and KZ Bluetooth Cable weight in grams.

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Size & Dimensions

The KZ Bluetooth Cable size and dimensions are:

  • Cable length: 70cm
  • Cable girth: 1.9mm
  • Module height: 7.9mm
  • Module lenght: 48.7mm
  • Module width: 13.4mm
  • Overall Weight: 9 g


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KZ Bluetooth Cable
KZ Bluetooth Cable



The KZ Bluetooth Cable have a bi-pin connector that is offered either with an angled connector or a straight connector, if you are buying it to match it with a KZ headphone you should buy the correct type of connector for a better fit.

To aid you in the research if your headphone has an angled or straight connectors, we are listing some of them according to it's connector:

Angled Connector:

KZ ZST - KZ Bluetooth Cable
KZ ZST - KZ Bluetooth Cable
KZ ZST PRO - KZ Bluetooth Cable
KZ ZST PRO - KZ Bluetooth Cable
KZ ES3 - KZ Bluetooth Cable
KZ ES3 - KZ Bluetooth Cable

Straight Connector:

As you can see from the photos below the angled connector will fit on KZ straight connector headphones but will not fit perfectly, so it is recommended to get the KZ Bluetooth cable with the straight connector for the headphones listed above.

KZ ZS6 - KZ Bluetooth Cable
KZ ZS6 - KZ Bluetooth Cable
KZ ZS3 - KZ Bluetooth Cable
KZ ZS3 - KZ Bluetooth Cable
KZ ZS5 - KZ Bluetooth Cable
KZ ZS5 - KZ Bluetooth Cable

This 1st version of the KZ Bluetooth cable is available with a straight connector or an angled connector but the latest waterproof KZ Bluetooth cable can also be purchased with an MMCX connector, allowing you to use it with headphones such as:

gramophone-25660 5/5

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Construction & Build

The KZ Bluetooth Cable might not be the thickest you can find but does not feel extremely fragile. The finish is rubberized.

The connectors, cable bifurcation and stereo plug are all made of metal with a nice industrial feel. Moreover each connector/plug has a reinforced rubberized end to extend their lifespan.


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The KZ Bluetooth Cable microphonics are substantially low. The short 70 cm length of it also reduce the risks of friction and consequential microphonics.


KZ Bluetooth Cable
KZ Bluetooth Cable
KZ Bluetooth Cable
KZ Bluetooth Cable



Differently to normal cables, a Bluetooth cable processes the audio signal from the Bluetooth transmission to the earpieces (actually, the responsible is the chip inside the module). Therefore, some cables may apply some sound modification and some not.

The KZ Bluetooth cable (version 1) conserves the same response up to 4.5 kHz and boosts highs, in their upper range from 4.6kHz onward with an average of 3dB in areas near 4.6kHz and increasing up to almost 5dB extra near the ranges of 10kHz to 13kHz - the exact amount of dB boosting will be limited accordingly to which headphone they are connected to.

This highs empowering can make the KZ Bluetooth cable (version 1) a phenomenal companion for earphones with rolled-off highs or for listeners that would like to get a highs boost on their favorite headphones.

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Scores Scores

KZ Bluetooth Cable Scores

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Frequency Response (raw)

KZ Bluetooth Cable Frequency Response Curve

KZ Bluetooth Cable frequency response curve with KZ ZS10
KZ Bluetooth Cable frequency response curve with KZ ZS10 - Red= KZ Bluetooth cable
KZ Bluetooth Cable frequency response curve with KZ ZSR
KZ Bluetooth Cable frequency response curve with KZ ZSR - Yellow= KZ Bluetooth cable

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KZ Bluetooth Cable Technical Specifications

Connectors optionsBi-pin
Charge time1.5 hours
Battery life3 to 4 hours

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KZ Bluetooth Cable Photos

We highly discourage anyone from trying to apply our testings to your own earphones, the risk of damaging or permanently breaking your iems is absolutely probable to happen. With our standardized equalization and amplification tests we push the limits of the earphones to the extreme. If anyway you decide to do so, we cannot be held responsible of the damage done to your equipment. Do it at your own risk.

KZ Bluetooth Cable





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