KZ AZ09 PRO Bluetooth 5.2 Ear-Hook Wireless Cable Upgrade with Charging Case — Compatible with KZ ZAS ZAX ZSX AST ZS10 EDX PRO

Overview: The KZ AZ09 PRO upgrade cable converts your earbuds to ear-hook wireless use while pairing advanced connectivity and long runtime. Built around the Qualcomm QCC3040 chipset and Bluetooth 5.2, it delivers faster data transfer, a more reliable connection, reduced latency and better power efficiency than previous solutions. Audio: The ear-hook supports multiple codecs — apt-x, AAC and SBC — with apt-x decoding providing high-definition audio reproduction and a detailed, immersive soundstage. Transmission: Implementing TWS+ dual-transmission technology, each ear-hook can operate independently (left and right), producing lower latency and snappier response than traditional main/auxiliary transmission—ideal for gaming and low-delay listening. Calls and Noise Reduction: CVC call noise reduction is included to minimize background noise and echo, keeping voice calls clear and natural. Battery and Charging: Each ear-hook contains a 50mAh battery, offering about 8 hours of continuous use. The included 800mAh charging case can recharge the ear-hooks approximately 6 times, yielding up to 48 hours of total playback time.