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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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)

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

🔋6h earhook battery + 7x charging case

RM252

Duties & taxes included

In stock

Sold byAmazon MalaysiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎧 Cut the cords, not the quality — wireless freedom redefined!

GAME MODE READY - Activate high-performance low-latency mode with triple tap—perfect for immersive gaming and flawless calls.
PRO GRADE SOUND CLARITY - AAC advanced audio coding and dual-chip protection deliver crystal-clear, natural sound that rivals wired connections.
SEAMLESS WIRELESS FREEDOM - Transform your wired IEMs into sleek wireless earbuds in seconds with the 2PIN gold-plated pluggable design.
ALL DAY POWER PORTABILITY - Enjoy up to 6 hours on a single charge plus 7 full recharges from the compact, magnetic charging case.
ERGONOMIC COMFORT MEETS DURABILITY - Lightweight earhooks shaped to your ear contour with oxygen-free copper silver-plated wiring for lossless audio transmission.

The KZ AZ09 Bluetooth 5.2 IPV5 Waterproof Noise Reduction Ear Hook is a premium upgrade cable that converts compatible wired IEMs into wireless earbuds. Featuring Bluetooth 5.2 for stable, low-latency connections, AAC audio encoding for superior sound quality, and an ergonomic waterproof design, it offers up to 6 hours of continuous use plus 7 full charges via its compact magnetic case. Ideal for professionals and gamers seeking wireless convenience without compromising audio fidelity.

Specifications

ASIN	B0988YNTBS
Additional Features	water-resistant, wireless
Age Range Description	Adult
Antenna Location	Gaming
Audio Driver Type	Hybrid Driver
Battery Average Life	42 hours
Best Sellers Rank	#230,027 in Electronics ( See Top 100 in Electronics ) #2,516 in On-Ear Headphones #9,403 in Earbud & In-Ear Headphones
Bluetooth Range	10 meters
Bluetooth Version	5.2
Brand Name	KZ
Built-In Media	Cable
Cable Features	Without Cable
Carrying Case Battery Average Life	42 hours
Carrying Case Color	Black
Carrying Case Weight	50 g
Color	AZ09-B,Black
Compatible Devices	Bluetooth-enabled devices
Connectivity Technology	bluetooth
Control Method	Touch
Control Type	Touch Control
Controller Type	Built-in
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
Item Weight	55 g
Manufacturer	yuanze
Model Name	AZ09
Model Number	AZ09-B
Noise Control	Sound Isolation
Number of Items	1
Specific Uses For Product	Professional
Style Name	Modern
Unit Count	1 Count
Water Resistance Level	Water Resistant
Wireless Technology	Bluetooth

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TrustScore 4.5 | 7,300+ reviews

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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