KZ AZ15

KZ AZ15 Bluetooth 5.2 Wireless Ear Hook User Manual

Upgrade your wired earphones to wireless with superior sound and connectivity.

1. Introduction

Thank you for choosing the KZ AZ15 Bluetooth 5.2 Wireless Ear Hook. This device is designed to transform your compatible wired in-ear monitors (IEMs) into high-fidelity wireless headphones, offering freedom of movement and advanced audio features. Please read this manual carefully to ensure proper use and optimal performance.

KZ AZ15 Wireless Ear Hooks in their charging case
KZ AZ15 Wireless Ear Hooks in their charging case.

2. Safety Information

To prevent damage to your device or injury to yourself and others, please observe the following precautions:

  • Do not expose the device to extreme temperatures, humidity, or liquids.
  • Avoid dropping or subjecting the device to strong impacts.
  • Keep out of reach of children and pets.
  • Use only the provided charging cable and case.
  • Do not attempt to disassemble or modify the device.
  • Prolonged listening at high volumes may cause hearing damage.

3. Package Contents

Ensure all items are present in your package:

  • KZ AZ15 Wireless Ear Hooks (Left and Right)
  • Charging Case
  • Type-C Charging Cable
  • User Manual
KZ AZ15 packaging and contents
The KZ AZ15 packaging and its contents: ear hooks, charging case, Type-C charging cable, and manual.

4. Product Overview

The KZ AZ15 features a Qualcomm QCC3046 Bluetooth 5.2 chip for stable and fast connections, supporting APTX, AAC, and SBC codecs for high-definition audio transmission. Its ergonomic ear hook design ensures comfortable and secure wear.

KZ AZ15 Wireless Ear Hooks and charging case with features listed
Key features of the KZ AZ15: Qualcomm QCC3046, APTX Codecs, 3 Performance Modes, Wireless 5.2, 54 hours battery life.
Icons representing key features of KZ AZ15
Icons representing key features: Qualcomm Bluetooth 5.2 chip, Standard Music/Game/Full Power modes, Large capacity long battery life, aptX/AAC/SBC HD transmission, Ergonomic design for comfortable wear, Automatic back connection with dual host support for separate use.
Diagram illustrating the detachable 2-pin design
The detachable 2-pin design allows you to convert your wired earbuds to wireless by connecting them to the AZ15 ear hooks.

5. Setup

5.1 Charging the Device

Before first use, fully charge the KZ AZ15 ear hooks and charging case.

  • Place the ear hooks into the charging case.
  • Connect the Type-C charging cable to the charging port on the case and a power source.
  • The indicator light on the charging case will show charging status.
  • A full charge provides approximately 6 hours of continuous playback for the ear hooks, and the charging case can recharge them about 9 times for a total of 54 hours of battery life.

5.2 Attaching Earphones

The KZ AZ15 ear hooks feature a standard 2-pin gold-plated connection. Align the pins of your compatible wired in-ear monitors (IEMs) with the sockets on the ear hooks and gently push them together until secure.

5.3 Bluetooth Pairing

  1. Ensure the ear hooks are charged and placed in the charging case.
  2. Open the charging case lid. The ear hooks will automatically enter pairing mode.
  3. On your device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
  4. Select "AZ15" from the list of devices to connect.
  5. Once connected, the ear hooks will automatically reconnect to your device when taken out of the case and within range.
Image showing dual host functionality and separate use of left and right ear hooks
The KZ AZ15 supports dual host functionality, allowing independent use of the left and right ear hooks.

6. Operating Instructions

6.1 Control Button Functions

The KZ AZ15 features a single multi-function button on each ear hook for convenient control:

Detailed diagram of one-key operation functions
Detailed diagram of the one-key operation functions for the control button on the ear hooks.
Control Button Operations
Action Left Earbud Right Earbud
Play/Pause Click once Click once
Last Song / Next Song Double-click Double-click
Start Siri (Voice Assistant) Click once N/A
Hang up / Answer Call Click once Click once
Reject Call Long press for 2 seconds Long press for 2 seconds
Full Power Mode N/A Long press
Standard Music / Game Mode Click three times Click three times

Note: Some functions may vary slightly depending on your connected device and operating system.

6.2 Performance Modes

The KZ AZ15 offers three distinct performance modes to optimize your listening experience:

  • Standard Music Mode: Provides a transparent sound field with rich details, suitable for general music listening.
  • Game Mode: Synchronized audio and video with low latency (approx. 40ms), enhancing gaming experiences.
  • Full Power Mode: Delivers full output from the earphones, ensuring stable connection and strong bass effects.

To switch between Standard Music and Game modes, click the right earbud three times. To activate Full Power Mode, long press the right earbud.

Image detailing the three performance modes
The three performance modes: Game Mode, Standard Music Mode, and Full Power Mode.

6.3 HD Microphone with CVC Noise Reduction

The integrated HD microphone utilizes CVC technology for call noise reduction, ensuring clear calls even in noisy environments. This technology retains more sound details, making voice calls clearer and more natural.

Image demonstrating CVC technology for call noise reduction
CVC technology provides clear calls by reducing ambient noise.

7. Maintenance

  • Cleaning: Use a soft, dry cloth to clean the ear hooks and charging case. Do not use harsh chemicals or abrasive materials.
  • Storage: When not in use, store the ear hooks in their charging case to protect them and keep them charged. Store in a cool, dry place away from direct sunlight.
  • Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the device regularly, even if not in use for extended periods.

8. Troubleshooting

Device not pairing:
Ensure the ear hooks are charged and out of the case. Turn off and on your device's Bluetooth. Try resetting the ear hooks.
How to reset the ear hooks:
Refer to the video below for instructions on how to reset the KZ AZ15 ear hooks if you encounter pairing issues or other malfunctions.
Video demonstrating the reset mode of operation for the KZ AZ15.
No sound or poor sound quality:
Check the connection between the ear hooks and your IEMs. Ensure your device's volume is up. Try switching between performance modes. Ensure the ear hooks are within Bluetooth range of your device.
Ear hooks not charging:
Ensure the charging cable is securely connected to both the case and the power source. Check if the charging case itself has power. Clean the charging contacts on both the ear hooks and the case.
Is there Active Noise Cancellation (ANC)?
No, the KZ AZ15 does not feature Active Noise Cancellation. It uses CVC technology for call noise reduction, which is different from ANC for music listening.

9. Specifications

Technical drawing with dimensions and product parameters
Technical drawing with dimensions and a table of product parameters.
Product Parameters
Feature Specification
Brand KZ
Model AZ15
Material Plastic
Category Earphones & Headphones
Bluetooth Chip Qualcomm QCC3046
Bluetooth Version 5.2
Bluetooth Encoding APTX/AAC/SBC
Effective Signal Range About 15 meters
Battery Capacity (per earpiece) 50mAh
Charging Case Capacity 800mAh
Charging Port Type-C
Single Playback Time About 6 hours
Total Battery Life (with case) About 54 hours
With Microphone Yes (with CVC Noise Reduction)
Waterproof Yes
Active Noise-Cancellation No
Volume Control Yes
Control Button Yes
Style Ear Hook
Certification CE
Resistance 16Ω
Image highlighting battery life
Stronger battery life: 6 hours single playtime, 54 hours total battery life with the 800mAh charging case.
Comparison chart between General Bluetooth 5.0 and New Generation Bluetooth 5.2
Bluetooth 5.2 offers improved battery life, range, and lower latency compared to Bluetooth 5.0.

10. User Tips

  • Optimal Fit: The ergonomic ear hook design is meant for comfortable and stable wear. Adjust the ear hooks to fit snugly around your auricle to prevent them from falling off during activity.
  • Flexible Use: Thanks to the dual host design, you can use either the left or right ear hook independently. This is convenient for calls or when you need to be aware of your surroundings.
  • Gaming Performance: For the best gaming experience, remember to switch to 'Game Mode' by triple-clicking the control button on either earbud to reduce latency.
  • Audio Quality: For critical listening, ensure you are in 'Standard Music Mode' or 'Full Power Mode' to experience the full fidelity of the APTX/AAC/SBC HD transmission.
  • Authenticity: Always purchase from authorized retailers to ensure you receive a genuine KZ product.
Close-up image of the ear hook worn on an ear
The lightweight and ergonomic design ensures a stable and comfortable fit.

11. Warranty and Support

KZ products are manufactured to high standards and undergo rigorous quality control. For any issues or support, please contact the seller or KZ customer service. Keep your purchase receipt as proof of purchase for warranty claims.

For further assistance, please refer to the official KZ website or contact their customer support channels.

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