What is the difference between the B pin and C pin models?

B pin: compatible with KZ-ZST/ZS10/ES4/ZSR , C pin: compatible with KZ-ZSN/ZS10PRO/ZSX

Are these only 2 pin or also mcmx? C pin option shows 2 pin still

They currently do not offer MMCX. They have talked about it and if and when they do I will purchase 2 sets. I have 3 of the 2 pin versions and they work great!

my headphones stopped playing in both ears after a few months no matter what device im using, is there a way to fix it or something?

Have you tried resetting , resetting gives your headset and devices a refresh. If that's dosen't work replace them they are under warranty.

How long is the battery for kz az09 supose to last if connect to a kz zsn pro or similar?

Sorry for late reply ,it can last 6-8 hours , it can contect to KZ zsn pro ,it is available for type C KZ products ZSX/ZSN/ZSNPRO/ZSN PROX/ZS10PRO/AS12/AS16 .not available for type B KZ PRODUCTS ZST/ZST X/ZS10/AS06/AS10/BA10/ZSR/ES4 ,hope it help you

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KZ AZ09 Bluetooth 5.2 IPV5 Waterproof Noise Reduction Bluetooth Module Upgrade Cable Ear Hook for ZST/ZSTX/ZS10/AS06/AS10/BA10/ZSR/ES4(B pin)

KZ AZ09 Bluetooth 5.2 IPV5 Waterproof Noise Reduction Bluetooth Module Upgrade Cable Ear Hook for ZST/ZSTX/ZS10/AS06/AS10/BA10/ZSR/ES4(B pin)

Product ID: 367109931

Details

Brand
KZ
Color
AZ09-B Black
Ear Placement
In Ear
Form Factor
On Ear
Noise Control
Sound

💧IPV5 water-resistant design

📶Bluetooth 5.2 stable low-latency

🔋6-8h earhook battery life

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Description

🎧 Elevate your sound game—wireless, waterproof, and built to last.

GAME MODE NO LAG - Triple tap to activate high-performance gaming mode with ultra-low latency for immersive, real-time audio.
ENDURANCE THAT KEEPS UP - 50mA earhook battery lasts 6-8 hours; 800mA charging case powers up to 7 full charges on the go.
ERGONOMIC LIGHTWEIGHT - Only 4.5g per earhook with silver-plated oxygen-free copper wiring ensures all-day comfort and lossless audio transmission.
PRO GRADE SOUND CLARITY - AAC advanced audio coding + dual-chip protection deliver crystal-clear, natural sound that rivals wired connections.
SEAMLESS WIRELESS FREEDOM - Cut the cord instantly with 2PIN pluggable design and gold-plated pins for effortless upgrade to wireless.

The KZ AZ09 Bluetooth 5.2 earhook module transforms compatible wired earphones into wireless powerhouses with stable, low-latency AAC audio transmission. Featuring IPV5 water resistance, ergonomic design, and a robust 6-8 hour battery life per earhook plus multiple charges from the compact 800mA case, it’s engineered for professionals and gamers seeking premium sound clarity and freedom from wires.

Specifications

ASIN	B0988YNTBS
Additional Features	water-resistant, wireless
Age Range Description	Adult
Audio Driver Type	Hybrid Driver
Battery Average Life	42 Hours
Best Sellers Rank	#202,225 in Electronics ( See Top 100 in Electronics ) #1,992 in On-Ear Headphones #8,390 in Earbud & In-Ear Headphones
Bluetooth Range	10 Meters
Bluetooth Version	5.2
Brand Name	KZ
Cable Features	Without Cable
Carrying Case Battery Average Life	42 Hours
Carrying Case Color	Black
Carrying Case Weight	50 Grams
Color	AZ09-B,Black
Compatible Devices	Bluetooth-enabled devices
Connectivity Technology	bluetooth
Control Method	Touch
Customer Reviews	4.0 4.0 out of 5 stars (540)
Earpiece Shape	Rounded Tip
Enclosure Material	Copper
Frequency Range	20 Hz - 20,000 Hz
Headphone Folding Features	On Ear
Headphone Jack	No Jack
Headphones Ear Placement	In Ear
Is Autographed	No
Item Weight	55 Grams
Manufacturer	yuanze
Model Name	AZ09
Model Number	AZ09-B
Noise Control	Sound Isolation
Number of Items	1
Specific Uses For Product	Professional
Unit Count	1 Count
Water Resistance Level	Water Resistant
Wireless Technology	Bluetooth

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€ 71.56

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In stock

Sold byAmazon FranceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to France.

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