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

🎧AAC codec for crystal-clear sound

📶Bluetooth 5.2 stable & low power

🔋6h earhook battery, 7x charging case

€ 76.47

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Description

🎧 Elevate Your Audio Game — Cut the Cord, Not the Quality!

ALL DAY POWER PLAY - Enjoy up to 6 hours on a single charge plus 7 full recharges from the compact, pocket-friendly case.
PRO GRADE SOUND CLARITY - Experience natural, high-definition audio thanks to AAC advanced encoding and lossless copper-silver wiring.
SEAMLESS WIRELESS FREEDOM - Transform your wired earbuds into sleek wireless with a quick 2PIN gold-plated plug-in design.
ERGONOMIC COMFORT MEETS DURABILITY - Water-resistant, lightweight earhooks shaped for all-day wear without fatigue.
DUAL CHANNEL LOW LATENCY GAMING MODE - Activate high-performance mode with a triple tap for ultra-responsive sound during intense gaming sessions.

The KZ AZ09 Bluetooth 5.2 Upgrade Cable Ear Hook converts compatible wired earbuds into wireless, delivering stable Bluetooth 5.2 connectivity with AAC codec for superior sound. Featuring a 50mA earhook battery lasting 6 hours and an 800mA charging case with 7 full charges, it ensures all-day use. Its ergonomic, water-resistant design and dual-channel low latency mode make it perfect for professional and gaming use.

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	#140,266 in Electronics ( See Top 100 in Electronics ) #2,303 in On-Ear Headphones #5,720 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 Grams
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
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
Style Name	Modern
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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€ 76.47

Duties & taxes included

In stock

Sold byAmazon NetherlandsDelivered 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 Netherlands.

Secure transaction

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Fast, free shipping, member pricing & priority support.

Join PRO →

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TrustScore 4.5 | 7,300+ reviews

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