---
product_id: 646082319
title: "Kz Az09 Wireless Iem Bluetooth Adapter 5.4 Module Noise Isolation C-Pin Headphone For ​Kz Zs10 Pro/Zs10 Pro X/Zsn Pro/As16 Pro/Zax, Cra/C12"
brand: "ez ear"
price: "¥10143"
currency: JPY
in_stock: true
reviews_count: 5
category: "Ez Ear"
url: https://www.desertcart.jp/products/646082319-kz-az09-wireless-iem-bluetooth-adapter-5-4-module-noise
store_origin: JP
region: Japan
---

# Dual host & C/B-pin support Bluetooth 5.4 tech 42h total playtime Kz Az09 Wireless Iem Bluetooth Adapter 5.4 Module Noise Isolation C-Pin Headphone For ​Kz Zs10 Pro/Zs10 Pro X/Zsn Pro/As16 Pro/Zax, Cra/C12

**Brand:** ez ear
**Price:** ¥10143
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your KZ IEMs to wireless freedom—because wired is so last decade.

## Quick Answers

- **What is this?** Kz Az09 Wireless Iem Bluetooth Adapter 5.4 Module Noise Isolation C-Pin Headphone For ​Kz Zs10 Pro/Zs10 Pro X/Zsn Pro/As16 Pro/Zax, Cra/C12 by ez ear
- **How much does it cost?** ¥10143 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/646082319-kz-az09-wireless-iem-bluetooth-adapter-5-4-module-noise)

## Best For

- ez ear enthusiasts

## Why This Product

- Trusted ez ear brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Light as Air, Built for Comfort:** At just 4.5g per earhook, enjoy pressure-free wear all day with sleek, ergonomic design.
- • **Unmatched All-Day Audio Freedom:** Up to 42 hours of continuous music with a powerful 800mAh charging case—ditch the charger and stay unplugged.
- • **Dual Host Mode for Seamless Control:** Use earhooks independently or together with lightning-fast audio sync—perfect for gaming and multitasking pros.
- • **Next-Gen Bluetooth 5.4 Connectivity:** Experience ultra-stable, low-latency wireless transmission with AAC codec support for crystal-clear sound.
- • **Universal Compatibility, Zero Hassle:** Supports both B-pin (0.78mm) and C-pin (0.75mm) connectors, perfectly tailored for your KZ and CCA IEMs.

## Overview

The EZ Ear KZ AZ09 Wireless IEM Bluetooth Adapter leverages Bluetooth 5.4 technology to deliver stable, high-fidelity audio with AAC codec support. Compatible with a wide range of KZ and CCA in-ear monitors via B-pin and C-pin connectors, it offers up to 6 hours of playback per charge and a total of 42 hours with its 800mAh charging case. Lightweight at 4.5g per earhook, it features dual host mode for independent or simultaneous use, making it an ideal upgrade for professionals seeking wireless convenience without compromising sound quality.

## Description

Brand: KzModel: AZ09Host: DoubleBattery usage time: 6 hours/1charge

Review: The sound quality is poor, plus I received it with no charging cable.
Review: I bought 2 of the kz az09 adapters, one for my castor pro’s and one for my zs10 pro’s. At $30.00 these bt adapters are perfect in my opinion. PROS: very good battery life, I use it regularly and charge the case once a week. Sound is really not much different than using a dac. Pretty low noise on these. The sound quality is AWESOME in my opinion. Good distance, probably about 30ft I’d say. Build quality is pretty solid. No issues as of yet. CONS: the only one I can think of is the case is a bit on the large size, and that’s it. Can’t really take away a star for that very minimal issue. 🤷🏼 All in all I highly recommend the the az09 adapters, they do what they are supposed to do, and do it well.

## Features

- 𝐁𝐫𝐨𝐚𝐝 𝐂𝐨𝐦𝐩𝐚𝐭𝐢𝐛𝐢𝐥𝐢𝐭𝐲- KZ Bluetooth iem adapter provides B-pin 0.78MM/C-pin 0.75MM choices. B-pin 0.78 MM suitable for KZ ZST/ZST-X/EDX/ZSR/ES4/AS10,CCA C10; C-pin 075MM for ZSN PRO/ZSN PRO-X/ZS10 PRO/ZS10 PRO X/ZS12 PRO X/ZS10 PRO 2/EDX PRO/CASTOR/ZAR/PR2/ZAX/AS24/AS24 PRO/ZAS/ZS-X,CCA CRA/C12
- 𝟓.𝟐 𝐁𝐥𝐮𝐞𝐭𝐨𝐨𝐭𝐡 𝐌𝐨𝐝𝐮𝐥𝐞-The iem wireless adapter adopts 5.4 technology which offers you an unparalleled audio experience with faster transmission speed, stronger connection stability. TWS high-definition bluetooth upgrade earhooks, support AAC audio encoding transmission. Hifi sound comes from double protection of chip guard and AAC advanced encoding capabilities.
- 𝐋𝐨𝐧𝐠 𝐁𝐚𝐭𝐭𝐞𝐫𝐲 𝐋𝐢𝐟𝐞-You can get 6 hours usage period per each charge. 800mAh charging case supports 7 times of recharging for both earbuds, gives up to 42 hours continuous music time. Keep you free from mobile charger with music all day!
- 𝐃𝐨𝐮𝐛𝐥𝐞 𝐇𝐨𝐬𝐭- Dual-channel transmission, lower delay. Earhooks can be used individually. The earhook features a high performance mode that gives you faster audio transmission speeds when you play games.
- 𝐋𝐢𝐠𝐡𝐭 𝐖𝐞𝐢𝐠𝐡𝐭 & 𝐏𝐨𝐫𝐭𝐚𝐛𝐥𝐞-Only 4.5g of each earhook, take in ear with 0 pressure. One multi-functional press button for calls, playing, pause and switch music.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D2HB8T8C |
| Additional Features | Lightweight |
| Age Range Description | Adult |
| Audio Driver Type | Balanced Armature Driver |
| Battery Average Life | 6 Hours |
| Battery Charge Time | 1 Hours |
| Best Sellers Rank | #92,181 in Electronics ( See Top 100 in Electronics ) #916 in Headphone Adapters |
| Bluetooth Version | 5.4 |
| Brand | EZ EAR |
| Built-In Media | Wireless Charging Case |
| Cable Features | Without Cable |
| Color | AZ09 |
| Compatible Devices | Cellphones |
| Connectivity Technology | Wireless |
| Control Method | Touch |
| Control Type | Media Control |
| Customer Reviews | 4.0 4.0 out of 5 stars (128) |
| Earpiece Shape | Earhook |
| Enclosure Material | Plastic |
| Frequency Range | 20Hz - 20,000Hz |
| Headphone Folding Features | In Ear |
| Headphone Jack | No Jack |
| Headphones Ear Placement | In Ear |
| Item Weight | 4.5 Grams |
| Manufacturer | EZ EAR |
| Model Name | KZ AZ09 C PIN |
| Model Number | KZ AZ09 |
| Noise Control | Sound Isolation |
| Specific Uses For Product | Calling, Entertainment |
| Style Name | Modern |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology | Bluetooth |

## Product Details

- **Brand:** EZ EAR
- **Colour:** AZ09
- **Ear placement:** In Ear
- **Form factor:** In Ear
- **Noise control:** Sound Isolation

## Images

![Kz Az09 Wireless Iem Bluetooth Adapter 5.4 Module Noise Isolation C-Pin Headphone For ​Kz Zs10 Pro/Zs10 Pro X/Zsn Pro/As16 Pro/Zax, Cra/C12 - Image 1](https://m.media-amazon.com/images/I/51F+5XRo4ML.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐ Review
*by R***N on 11 July 2025*

The sound quality is poor, plus I received it with no charging cable.

### ⭐⭐⭐⭐⭐ Review
*by B***T on 23 October 2025*

I bought 2 of the kz az09 adapters, one for my castor pro’s and one for my zs10 pro’s. At $30.00 these bt adapters are perfect in my opinion. PROS: very good battery life, I use it regularly and charge the case once a week. Sound is really not much different than using a dac. Pretty low noise on these. The sound quality is AWESOME in my opinion. Good distance, probably about 30ft I’d say. Build quality is pretty solid. No issues as of yet. CONS: the only one I can think of is the case is a bit on the large size, and that’s it. Can’t really take away a star for that very minimal issue. 🤷🏼 All in all I highly recommend the the az09 adapters, they do what they are supposed to do, and do it well.

### ⭐⭐⭐⭐⭐ Review
*by S***A on 27 October 2024*

Muy buen producto, no he tenido ningún problema de conección, ni de carga con los módulos. Recomendable!!!!

## Frequently Bought Together

- KZ AZ09 Wireless IEM Bluetooth Adapter 5.4 Module Noise Isolation C-pin Bluetooth Headphone for ​KZ ZS10 PRO/ZS12 PRO X/ZS10 PRO 2/ZSN Pro X/ZSN PRO/EDX PRO/Castor, CCA CRA/C12
- KZ EDX PRO in Ear Monitor IEM Wired Earbuds, Ear Buds HiFi Stereo Sound Earphones with 1DD New 10mm Dynamic Driver Noise Cancelling Headphone with Detachable Cable

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**Shop now:** [https://www.desertcart.jp/products/646082319-kz-az09-wireless-iem-bluetooth-adapter-5-4-module-noise](https://www.desertcart.jp/products/646082319-kz-az09-wireless-iem-bluetooth-adapter-5-4-module-noise)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-05-08*