KZ AZ09 TWS HD Bluetooth Ear Hook – C-Pin Version (0.78mm)

Enjoy true wireless freedom without giving up your favourite IEMs. The KZ AZ09 C-Pin version is designed for earphones that use 0.78mm recessed or flat pins, allowing you to convert compatible KZ and CCA wired earphones into a reliable, low-latency true wireless system in seconds.
Equipped with an advanced Bluetooth 5.2 chipset, the AZ09 offers a more stable connection, longer range, and lower power consumption compared to older Bluetooth versions. AAC audio encoding ensures clean, detailed sound that stays close to the original wired performance.
Each ear hook weighs just around 4.5g and features an ergonomic, skin-friendly resin design that sits comfortably around the ear for long listening sessions. Thanks to dual-host dual-channel transmission, each side connects independently, allowing single-ear use and reduced latency for video and gaming.
Key Features

C-Pin (0.78mm) connector for compatible KZ/CCA earphones

Converts wired earphones into true wireless (TWS)

Bluetooth 5.2 for improved stability and efficiency

Supports AAC audio transmission for clearer sound

Dual-host / dual-channel technology for independent left/right use

Low-latency mode (~40ms) suitable for gaming and video

Auto-pairing & auto-connect for easy daily operation

Comfort & Design

Lightweight build – approx. 4.5g per ear hook

Ergonomic ear-hook shape for secure fit

Soft, skin-friendly resin housing for extended comfort

Battery Life

Up to 6 hours playback per charge

Charging case provides 8–10 additional charges

Optimised power usage with Bluetooth 5.2

C-Pin Compatibility (0.78mm)
Suitable for earphones such as:

KZ ZS10 Pro

KZ ZSN / ZSN Pro / ZSN Pro X

KZ ZSX

KZ AS12 / AS16

KZ AZX / DQ6

CCA C12 / NRA / CA16

CCA CA10 / CA4 / CXK

CCA C10 Pro / CSN / A10

Important Notes

C-Pin (0.78mm) version only

Not compatible with B-Pin (0.75mm) models

Bluetooth upgrade accessory only – earphones not included

Please confirm your earphones use 0.78mm C-Pin connectors before purchase

Perfect for users wanting a clean, cable-free upgrade while keeping the sound signature of their existing KZ or CCA earphones.