Turn your favourite compatible KZ or CCA wired earphones into a clean, cable-free true wireless setup with the KZ AZ09 B-Pin version. Designed with 0.75mm straight pins, this model is ideal for selected KZ/CCA IEMs that use the classic B-Pin connector.
Powered by a Bluetooth 5.2 chip, the AZ09 delivers a stable connection, reduced latency, and improved battery efficiency compared to older Bluetooth versions. Support for AAC audio encoding ensures clear, natural sound quality that stays close to the wired listening experience.
The lightweight ear-hook design weighs only around 4.5g per side and is made from skin-friendly resin for long-term comfort. With dual-host dual-channel transmission, each ear hook connects independently, allowing single-ear use and faster response for video and gaming.
Key Features
B-Pin (0.75mm) connector for compatible KZ/CCA earphones
Converts wired IEMs into true wireless (TWS) earphones
Bluetooth 5.2 for improved stability and lower power consumption
AAC audio transmission for clearer, more natural sound
Dual-host / dual-channel technology – use left or right side independently
Low-latency mode (~40ms) for gaming and video
Auto-pairing and auto-connect for everyday convenience
Comfort & Design
Approx. 4.5g per ear hook – lightweight with no pressure
Ergonomic ear-hook shape for a secure fit
Soft, skin-friendly resin housing for all-day comfort
Battery Life
Up to 6 hours playback on a single charge
Charging case provides 8–10 additional charges
Optimised efficiency with Bluetooth 5.2
B-Pin Compatibility (0.75mm)
Suitable for earphones such as:
KZ ZST / ZSTX
KZ ZS10
KZ AS06 / AS10
KZ BA10
KZ ZSR
KZ ES4
CCA C10 / C16
Important Notes
B-Pin (0.75mm) version only
Not compatible with C-Pin (0.78mm) models such as ZS10 Pro or ZSN Pro X
Bluetooth upgrade accessory only – earphones not included
Please confirm your earphones use 0.75mm B-Pin connectors before purchase
Ideal for users who want wireless freedom while keeping the sound and fit of their existing KZ or CCA in-ear monitors.

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