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.
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
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.
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
- Ensure the ear hooks are charged and placed in the charging case.
- Open the charging case lid. The ear hooks will automatically enter pairing mode.
- On your device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "AZ15" from the list of devices to connect.
- Once connected, the ear hooks will automatically reconnect to your device when taken out of the case and within range.
6. Operating Instructions
6.1 Control Button Functions
The KZ AZ15 features a single multi-function button on each ear hook for convenient control:
| 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.
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.
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.
- 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
| 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 |
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.
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.





