KZ AZ09Pro Bluetooth Earbuds Hook User Manual

1. Product Overview

The KZ AZ09Pro Bluetooth Earbuds Hook transforms compatible wired in-ear monitors (IEMs) into true wireless Bluetooth earphones. Featuring Bluetooth V5.2, aptX HD audio, and TWS+ dual transmission technology, it offers a high-quality wireless listening experience with extended battery life and CVC call noise reduction.

KZ AZ09Pro Bluetooth Earbuds Hook and Charging Case — Image 1.1: The KZ AZ09Pro Bluetooth ear hooks shown with their charging case. The ear hooks are designed to convert wired IEMs into wireless units.

KZ AZ09Pro TWS High Definition Bluetooth Earhooks — Image 1.2: A visual representation highlighting the KZ AZ09Pro as TWS High Definition Bluetooth Earhooks, emphasizing the conversion of wired earphones to wireless.

2. Package Contents

KZ AZ09Pro Bluetooth Ear Hooks (Left and Right)
Charging Case
USB-C Charging Cable (not explicitly listed but implied by charging case)
User Manual (this document)

3. Specifications

Feature	Specification
Model	AZ09Pro
Bluetooth Version	V5.2
Bluetooth Range	15 meters
Ear Hook Weight (single)	4.5g
Charging Case Weight	85g
Ear Hook Battery Capacity	50mA
Charging Case Battery Capacity	800mA
Total Playback Time	Up to 48 hours (with charging case)
Charging Interface	USB-C
Audio Codecs	aptX HD, AAC, SBC
Noise Reduction	CVC Call Noise Reduction
Connector Type	2PIN (0.75mm/0.78mm, C PIN compatible)
Control Method	Physical Buttons, App Control
Material	Silicone (ear hooks)

Qualcomm QCC3040 Bluetooth Chip — Image 3.1: Illustration of the Qualcomm QCC3040 Bluetooth 5.2 chip, which powers the KZ AZ09Pro for stable and high-quality wireless performance.

4. Setup

4.1 Charging the Device

Before initial use, fully charge the KZ AZ09Pro ear hooks and their charging case. Connect the charging case to a USB power source using a USB-C cable. The charging case indicator will show charging status.

Charging Case Indicator: Red light indicates charging; green light indicates fully charged.
Earphone Indicator: Red light flashes when ear hooks are charging inside the case.

KZ AZ09Pro Charging Case and Indicators — Image 4.1: A multi-panel image showing various features, including the charging case with indicators for earphone and case battery status. The top right panel specifically illustrates the charging process and indicator lights.

4.2 Connecting IEMs to Ear Hooks

The KZ AZ09Pro ear hooks are designed for IEMs with 0.75mm/0.78mm 2PIN connectors, specifically C PIN compatible models. Carefully align the 2PIN connector of your IEM with the socket on the ear hook and push gently until it is securely connected.

Compatible Models (C PIN): KZ ZSN/ZSN PRO/ZSN PRO X/ZS10 PRO/ZSX/AS12/AS16/ZAX/ASF/ASX/DQ6/AST/EDX Pro/ZEX/ZEXPro/ZAS, CCA CA4/CA16/C12/A10/CKX/CS16/CSN/C10PRO.

KZ AZ09Pro 2-Pin Compatibility and Controls — Image 4.2: A multi-panel image detailing button functions, ear hook design, and 2-Pin compatibility. The bottom right panel specifically illustrates the C PIN and B PIN specifications and compatible earphone models.

4.3 Bluetooth Pairing

Ensure the ear hooks are charged and your IEMs are securely attached.
Open the charging case. The ear hooks will automatically enter pairing mode.
On your Bluetooth device (smartphone, tablet, etc.), go to Bluetooth settings and search for available devices.
Select "KZ AZ09Pro" from the list to connect.
Once connected, a voice prompt will confirm successful pairing.

The TWS+ Dual Transmission Technology allows for independent use of either ear hook after initial pairing.

5. Operating Instructions

5.1 Power On/Off

Power On: Open the charging case, or long-press the button on each ear hook.
Power Off: Place the ear hooks back into the charging case and close the lid, or long-press the button on each ear hook until the indicator light turns off.

5.2 Basic Controls

Each ear hook features a multi-function button for controlling playback and calls.

Play/Pause: Click the button once.
Next Song: Double-click the right ear hook button.
Previous Song: Double-click the left ear hook button.
Answer/Hang Up Call: Click the button once during an incoming call or active call.
Refuse Call: Long-press the button during an incoming call.
Activate Voice Assistant (Siri, Google Assistant): Long-press the button for 2 seconds. (Features may vary by device).

KZ AZ09Pro Button Functions — Image 5.1: A detailed diagram illustrating the various functions assigned to the multi-function buttons on the KZ AZ09Pro ear hooks, including playback, call management, and voice assistant activation.

5.3 Dual Mode Function (Full Power / Gaming Mode)

The AZ09Pro offers two distinct operating modes:

Full Power Output Mode: Provides maximum audio fidelity and power.
Gaming Mode: Reduces audio latency for an improved gaming experience.

To switch between modes:

Activate Gaming Mode: Triple-click the right ear hook button.
Activate Full Power Output Mode: Triple-click the left ear hook button.

KZ AZ09Pro Dual Mode Function — Image 5.2: This multi-panel image also shows the 'Original dual mode function' at the bottom left, explaining how to switch between full power output mode and gaming mode using triple clicks on the left or right earbud.

6. Features

aptX HD Pure Sound Quality: High-definition audio analysis restores a detailed sound field. Note: Some devices may not support aptX mode and will use AAC/SBC mode.
CVC Call Noise Reduction Technology: Enhances call clarity by reducing ambient noise for HD calls.
TWS+ Dual Transmission Technology: Allows for independent use of each ear hook, providing flexibility and stable connection.
Extended Battery Life: Up to 48 hours of playback with the portable charging case.
Comfortable Design: Memory shaping liquid silicone ear hooks provide a comfortable and skin-friendly fit.

KZ AZ09Pro aptX HD Pure Sound Quality — Image 6.1: An illustration emphasizing the aptX HD Pure Sound Quality feature of the KZ AZ09Pro, indicating high-definition audio analysis for a rich sound experience.

KZ AZ09Pro CVC Call Noise Reduction Technology — Image 6.2: A visual representation of the CVC Call Noise Reduction Technology integrated into the KZ AZ09Pro, designed to facilitate clear high-definition calls.

KZ AZ09Pro Memory Shaping Liquid Silicone Earhooks — Image 6.3: This multi-panel image includes a section on the right side illustrating the memory shaping liquid silicone ear hooks, highlighting their comfortable and skin-friendly design.

7. Maintenance

Cleaning: Use a soft, dry cloth to clean the ear hooks and charging case. Avoid using liquids or abrasive cleaners.
Storage: When not in use, store the ear hooks in their charging case to protect them and ensure they remain charged.
Water Resistance: The product is water resistant. Avoid prolonged exposure to water or submersion.
Charging: Only use the provided USB-C cable or a certified equivalent for charging.

8. Troubleshooting

No Power: Ensure the ear hooks and charging case are fully charged.
Cannot Pair: Make sure the ear hooks are in pairing mode (indicator light flashing). Turn off and on Bluetooth on your device, then try pairing again. Ensure the ear hooks are not connected to another device.
Intermittent Connection/Audio Dropouts: Ensure your device is within the 15-meter Bluetooth range. Avoid strong electromagnetic interference. Try resetting the ear hooks by placing them in the charging case and closing the lid for a few seconds.
One Ear Hook Not Working: Ensure both ear hooks are charged. Try re-pairing them with your device.
Poor Call Quality: Ensure the microphone is not obstructed. Check for strong background noise. CVC noise reduction is active, but extreme noise may still affect clarity.

9. Warranty and Support

For warranty information, please refer to the documentation provided at the time of purchase or contact your retailer. For technical support, please visit the official KZ website or contact their customer service department.

Manufacturer: Shenzhen Yuanze Electronic Co., Ltd