CCA KZ AZ09 Bluetooth Earhook Module

The CCA KZ AZ09 Bluetooth 5.4 earhook module (B-pin) converts compatible KZ/CCA wired IEMs into wireless earhooks while preserving original sound quality.

If you own KZ or CCA in-ear monitors with 0.75mm/0.78mm B-pin connectors, the AZ09 module lets you drop the cable and use them wirelessly with modern Bluetooth features. This compact, lightweight earhook uses Bluetooth 5.4 and AAC codec support for improved connection stability and clearer audio. Each earhook houses a rechargeable battery and fits common KZ models including ZST, ZST X, ZS10, AS06, AS10, BA10, ZSR, ES4, and the CCA C10.

How does the AZ09 convert my wired earphones to wireless?

Installation is plug-and-play: disconnect the stock cable and attach the AZ09’s B-pin connectors to your earphones. The module acts as the audio source and Bluetooth receiver while maintaining the earphones’ original drivers and timbre.

• Direct B-pin fit for supported KZ/CCA models — no soldering required
• Retains your earphones’ native sound signature and fit
• One-button controls for play/pause, calls, and track skipping

What battery life and charging options can I expect?

Each earhook offers around 6 hours of continuous playback on a single charge, and the included 400mAh charging case provides up to four full recharges for the pair. That yields up to roughly 30 hours of total listening time between mains charges.

• 6 hours per earhook from single charge
• 400mAh case — about 4 recharges for both earhooks
• Portable charging case for on-the-go top-ups

Will the AZ09 work for gaming or single-ear use?

The AZ09 supports a dual-host architecture and a dedicated high-performance game mode to reduce latency. You can also use each earhook independently for mono listening or calls, which is handy for commuting or single-ear monitoring.

• Dual-channel transmission reduces lag and avoids single-host limits
• High-performance mode lowers audio delay for gaming
• Use left or right earhook solo for calls or mono audio

Is the AZ09 comfortable and easy to operate daily?

Each earhook weighs about 4.5 grams, designed for minimal pressure on the ear. A single multi-function button on each unit controls calls and playback, making operation straightforward without touching your phone.

• Ultra-light 4.5g earhooks for long-wear comfort
• Simple one-button control for common functions
• Water-resistant construction for sweat and light-mist protection

Who is this for: The CCA KZ AZ09 B-pin Bluetooth module is ideal for owners of compatible KZ/CCA wired IEMs who want wireless convenience without replacing their earphones. It suits commuters, gamers seeking lower latency, and anyone who values the original IEM sound but needs modern Bluetooth features and extended battery life.