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 for active lifestyles

📶Bluetooth 5.2 for stable, low-latency connection

🔋6h earhook battery, 7x charging case cycles

AED 168

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Description

🎧 Elevate your audio game—wireless, waterproof, and built to perform all day!

GAME MODE READY - Activate ultra-low latency gaming mode with a triple tap, syncing dual earhooks for a competitive edge without audio lag.
ENDURANCE THAT KEEPS UP - Enjoy up to 6 hours of continuous playback per charge and a total of 42 hours with the compact charging case—perfect for long workdays or travel.
PRO GRADE SOUND CLARITY - Experience crystal-clear audio with AAC advanced encoding and hybrid drivers delivering natural, immersive sound quality.
ERGONOMIC ALL DAY COMFORT - Designed to contour perfectly to your ear’s shape, these lightweight earhooks ensure fatigue-free wear during meetings, calls, or workouts.
SEAMLESS WIRELESS FREEDOM - Transform your wired earbuds into sleek wireless powerhouses in seconds with the 2PIN pluggable design and gold-plated connectors.

The KZ AZ09 Bluetooth 5.2 Upgrade Cable Ear Hook converts compatible wired earbuds into wireless, IPV5 water-resistant earhooks featuring AAC audio encoding for superior sound quality. Powered by a 50mA earhook battery and an 800mA charging case, it offers up to 6 hours of playback per charge and 42 hours total. With ergonomic design, dual-channel low-latency transmission, and a dedicated game mode, it’s engineered for professionals and gamers seeking premium wireless audio freedom.

Specifications

ASIN	B0988YNTBS
Additional Features	water-resistant, wireless
Age Range Description	Adult
Antenna Location	Gaming
Audio Driver Type	Hybrid Driver
Best Sellers Rank	#139,788 in Electronics ( See Top 100 in Electronics ) #1,283 in On-Ear Headphones #5,429 in Earbud & In-Ear Headphones
Bluetooth Range	10 meters
Bluetooth Version	5.2
Brand	KZ
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 out of 5 stars 540 Reviews
Ear Placement	In Ear
Earpiece Shape	Rounded Tip
Enclosure Material	Copper
Form Factor	On Ear
Headphone Folding Features	On Ear
Headphone Jack	No Jack
Headphones Ear Placement	In Ear
Headphones Jack	No Jack
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
Theme	Modern Wireless Audio Technology
Unit Count	1 Count
Water Resistance Level	Water Resistant
Wireless Technology	Bluetooth

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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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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AED 168

Duties & taxes included

In stock

Sold byAmazon UAEDelivered 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 UAE.

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