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)

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 power

🔋6h earhook battery, 7x charging case

647 DH

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Description

🎧 Upgrade your sound game—wireless, waterproof, and built to perform!

NEXT GEN BLUETOOTH 5 2 - Experience ultra-stable, low-latency audio with the RTL8753 chip—perfect for gaming and calls alike.
AAC HIGH DEFINITION AUDIO - Enjoy crystal-clear, natural sound thanks to advanced AAC encoding and lossless copper-silver wiring.
SEAMLESS WIRELESS FREEDOM - Transform your wired earbuds into sleek wireless with a quick 2PIN gold-plated plug-in upgrade.
ALL DAY POWER PORTABILITY - 6 hours playtime per charge plus 7 full recharges from the compact 800mA charging case keeps you unplugged longer.
ERGONOMIC WATER RESISTANT - Designed to fit your ear comfortably with IPV5 water resistance—ready for your active lifestyle.

The KZ AZ09 Bluetooth 5.2 Upgrade Cable Ear Hook converts compatible wired earbuds into wireless, featuring AAC audio encoding for superior sound quality, a stable RTL8753 chip for low-latency Bluetooth 5.2 connectivity, and an ergonomic, water-resistant design. With 6 hours of earhook battery life and a charging case providing 7 full recharges, it’s engineered for professionals and gamers seeking premium wireless freedom without compromise.

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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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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647 DH

Duties & taxes included

In stock

Sold byAmazon MoroccoDelivered 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 Morocco.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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The product exactly matches the description. Very satisfied with my purchase.

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