1. Introduction
Thank you for choosing the QKZ AK3 Metal Wired Earphones. These high-fidelity in-ear monitors are designed to deliver a sensational audio experience with deep bass, clear sound, and comfortable wear. Featuring a durable metal construction, a titanium plating dynamic moving coil unit, and a multifunctional inline control with microphone, the AK3 earphones are suitable for various activities including sports, music listening, and DJ monitoring.
This manual provides detailed instructions to help you get the most out of your earphones, from initial setup to advanced usage and maintenance.
2. Package Contents
- QKZ AK3 Metal Wired Earphones
- Detachable Cable with 3.5mm Jack and Inline Microphone
- Silicone Ear Tips (S, M, L sizes)
3. Setup and Wearing
3.1 Selecting the Right Ear Tips
Choosing the correct ear tip size is crucial for optimal sound quality and comfort. Experiment with the included Small (S), Medium (M), and Large (L) silicone ear tips to find the best fit for your ears. A good fit will provide better bass response and passive noise isolation.
Figure 1: Included silicone ear tips in S, M, L sizes.
3.2 Connecting the Cable
The QKZ AK3 earphones feature a detachable cable. Ensure the cable connectors are aligned with the earphone units (L for left, R for right) and gently push them in until they click securely into place. The 3.5mm jack connects to your audio source.
Figure 2: 3.5mm Gold-plated Pin for secure connection.
3.3 Wearing the Earphones
The AK3 earphones are designed for an over-ear wearing style to provide a secure and comfortable fit, especially during movement. Gently loop the cable over your ear and insert the ear tip into your ear canal. Adjust the cable and earphone unit until it feels snug and comfortable.
Figure 3: Ergonomic design for comfortable wearing.
4. Operating Instructions
The QKZ AK3 earphones come with an inline control button and microphone for easy management of calls and music playback.
Figure 4: HD Communication Microphone Multifunctional Key.
4.1 Call Control
- Short press: Answer / Hang up a call
- Long press: Reject an incoming call
4.2 Music Control
- Short press: Play / Pause music
- Double click: Next song
- Three clicks: Previous song
5. Maintenance
- Cleaning: Regularly wipe the earphones and cable with a soft, dry cloth. For ear tips, remove them from the earphones and clean with mild soap and water, then rinse and dry thoroughly before reattaching.
- Storage: When not in use, store the earphones in a clean, dry place, preferably in a protective case to prevent tangling and damage.
- Cable Care: Avoid sharp bends or excessive pulling on the cable to prevent internal wire damage.
- Moisture: Keep earphones away from moisture and extreme temperatures.
6. Troubleshooting
- No Sound:
- Ensure the 3.5mm jack is fully inserted into your audio device.
- Check the volume level on your audio device.
- Verify the cable is securely connected to both earphone units.
- Test with another audio device or another pair of earphones to isolate the issue.
- Poor Sound Quality (e.g., distorted, weak bass):
- Ensure ear tips are correctly sized and provide a good seal in your ear canal.
- Check for debris in the earphone nozzles and clean if necessary.
- Try a different audio source or audio file.
- Microphone Not Working:
- Ensure the 3.5mm jack is fully inserted into your device, as some devices require a full connection for microphone functionality.
- Check your device's settings to ensure the correct microphone input is selected.
- Test the microphone with another device.
7. Specifications
Figure 5: QKZ AK3 Product Parameters.
| Feature | Specification |
|---|---|
| Product Model | QKZ-AK3 |
| Brand Name | KZ |
| Material | Metal |
| Vocalism Principle | Dynamic |
| Communication | Wired |
| Connectors | 3.5 MM |
| Plug Type | L Bending |
| Line Length | 1.2m (125cm ± 5cm) |
| With Microphone | Yes |
| Control Button | Yes |
| Volume Control | Yes |
| Active Noise-Cancellation | No |
| Sound Isolating | No |
| Waterproof | No |
| Driver Diameter | 10mm |
| Frequency Response Range | 10 - 20000Hz |
| Impedance | 17Ω ± 10% (up to 32 Ω) |
| Sensitivity | 109dB ± 3dB |
| Headphone Pads Material | Memory Foam |
| Wire Type | OFC oxygen free copper dual wire |
| Wearing Style | Around the ear type |
| Colors Available | White, Black, Purple, Cyan |
| Certification | CE |
| Origin | Mainland China |
8. User Tips
- Burn-in Period: Some audiophiles suggest a 'burn-in' period for new earphones to achieve their optimal sound signature. This typically involves playing music through them for several hours.
- Volume Control: To protect your hearing, avoid listening at excessively high volumes for extended periods.
- Cable Management: Use a cable organizer or wrap the cable neatly to prevent tangles and prolong its lifespan.
- Secure Fit: Always ensure a secure fit with the correct ear tips to maximize bass response and noise isolation.
9. Warranty and Support
For warranty information and customer support, please refer to the seller's policy or contact the point of purchase. Keep your proof of purchase for any warranty claims.
A user manual in PDF format may be available for download from the seller's website or product page. Please check for the 'Item guides & documents' section for more details.
10. Product Video
Watch the official product video for a visual overview of the QKZ AK3 earphones' features and design.
Video: QKZ AK3 Earphones Product Showcase.





