---
product_id: 700504304
title: "KZ AZ09 Bluetooth IEM 5.4 Module IEM Bluetooth Adaper Wireless B-pin 0.78MM for ​KZ ZST/ZSTX/ZS10/AS06/AS10/BA10/ZSR/ES4"
brand: "ez ear"
price: "RM307"
currency: MYR
in_stock: true
reviews_count: 5
category: "Ez Ear"
url: https://www.desertcart.com.my/products/700504304-kz-az09-bluetooth-iem-5-4-module-iem-bluetooth-adaper
store_origin: MY
region: Malaysia
---

# Bluetooth 5.4 tech 0.78mm B-pin compatibility 42h total playtime KZ AZ09 Bluetooth IEM 5.4 Module IEM Bluetooth Adaper Wireless B-pin 0.78MM for ​KZ ZST/ZSTX/ZS10/AS06/AS10/BA10/ZSR/ES4

**Brand:** ez ear
**Price:** RM307
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** KZ AZ09 Bluetooth IEM 5.4 Module IEM Bluetooth Adaper Wireless B-pin 0.78MM for ​KZ ZST/ZSTX/ZS10/AS06/AS10/BA10/ZSR/ES4 by ez ear
- **How much does it cost?** RM307 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/700504304-kz-az09-bluetooth-iem-5-4-module-iem-bluetooth-adaper)

## 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

- • **Next-Gen Bluetooth 5.4:** Experience ultra-stable, low-latency wireless audio with AAC codec for crystal-clear sound.
- • **All-Day Listening Freedom:** 6 hours per charge plus 7 full recharges from the compact 800mAh case—music that never quits.
- • **Dual-Host Mode for Gamers & Pros:** Use earhooks independently with lightning-fast transmission for gaming or calls.
- • **Featherlight & Intuitive Controls:** At just 4.5g each, enjoy zero ear fatigue and one-button control for calls and music.
- • **Seamless Multi-Device Compatibility:** Supports B-pin 0.78mm for top KZ IEMs, ensuring effortless upgrade without hassle.

## Overview

The KZ AZ09 Bluetooth 5.4 Module is a lightweight wireless adapter designed for select KZ IEMs with 0.78mm B-pin connectors. It delivers up to 6 hours of continuous playback per charge, supported by an 800mAh charging case offering 42 hours total music time. Featuring dual-host mode for independent earhook use, AAC codec support, and ultra-stable Bluetooth 5.4 connectivity, it transforms wired in-ear monitors into versatile wireless audio devices perfect for calls, entertainment, and gaming.

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

## 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/ZSTX/ZSTX/EDX/ZSR/ES4/AS10/ED12/ES3/AS06/BA10; C-pin 075MM for ZSN/ZSN PRO/ZSN PRO-X/ZS10 PRO/ZS10 PRO X/EDX PRO/AS16/AS16 PRO/PR2/ZEX PRO/AS12/AS24/DQS/C12/C10 /CRA.
- 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 | B0D2GYJ7K8 |
| Age range (description) | Adult |
| Best Sellers Rank | #83,620 in Electronics ( See Top 100 in Electronics ) #843 in Headphone Adapters |
| Cable feature | Without Cable |
| Charging time | 1 Hours |
| Compatible devices | Cellphones |
| Connectivity technology | Wireless |
| Control method | Remote |
| Control type | Media Control or Call Control or Volume Control |
| Headphone jack | No Jack |
| Included components | Wireless Charging Case |
| Item model number | KZ AZ09 |
| Item weight | 0.06 Pounds |
| Manufacturer | EZ EAR |
| Model name | KZ AZ09 B PIN |
| Package Dimensions | 8.61 x 7.59 x 3.91 cm; 27.22 g |
| Package type | FFP |
| Recommended uses for product | Entertainment, Calling |
| Specific uses for product | Calling, Entertainment |
| Style | Modern |
| Water resistance level | Waterproof |
| Wireless communication technologies | Bluetooth |

## Product Details

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

## Images

![KZ AZ09 Bluetooth IEM 5.4 Module IEM Bluetooth Adaper Wireless B-pin 0.78MM for ​KZ ZST/ZSTX/ZS10/AS06/AS10/BA10/ZSR/ES4 - Image 1](https://m.media-amazon.com/images/I/61XEcAvICCL.jpg)

## 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 S***A on 27 October 2024*

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

### ⭐⭐⭐⭐⭐ Review
*by J***L on 11 January 2026*

Absolutely awesome. No problem connecting, the design looks good and fits over the ears very well, sound quality of excellent. I think the "connected" voice is funny but it happens before you can even get them to your ear so you really have to TRY in order to hear it. Make sure you get the right model to fit your specific buds. I don't plan to go back to other headphones any time soon. Highly recommended.

## Frequently Bought Together

- KZ AZ09 Bluetooth IEM 5.4 Module IEM Bluetooth Adaper Wireless B-pin 0.78MM for ​KZ ZST/ZSTX/ZS10/AS06/AS10/BA10/ZSR/ES4
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- InEar Monitor Case for IEM, in Ear Monitors, in Ears, Headphones, Earphones, Earbuds. Suitable for KZ ZS10/ZS10 Pro/ZSN/ZST/ZEX/AS10/AS16,YINYOO CCZ Melody - GIGCASE®

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**Shop now:** [https://www.desertcart.com.my/products/700504304-kz-az09-bluetooth-iem-5-4-module-iem-bluetooth-adaper](https://www.desertcart.com.my/products/700504304-kz-az09-bluetooth-iem-5-4-module-iem-bluetooth-adaper)

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*Product available on Desertcart Malaysia*
*Store origin: MY*
*Last updated: 2026-02-04*