1. Introduction
Thank you for choosing the KZ ZVX Dynamic Driver HiFi In-Ear Headphones. This manual provides essential information for the proper setup, operation, and maintenance of your new audio device. Please read it thoroughly before use to ensure optimal performance and longevity.
The KZ ZVX headphones are engineered for high-fidelity audio reproduction, featuring a 10mm dual-cavity dynamic driver and a detachable 0.75mm 2-pin cable. Its ergonomic design ensures a comfortable listening experience.
2. Package Contents
- KZ ZVX In-Ear Headphones (Left and Right Earpieces)
- Detachable 0.75mm 2-Pin OFC Anaerobic Copper Cable (without microphone)
- Silicone Eartips (various sizes)
- User Manual
3. Product Overview

Figure 3.1: KZ ZVX In-Ear Headphones with Detachable Cable
The KZ ZVX In-Ear Headphones feature a sleek black design with a detachable cable, designed for high-fidelity audio.

Figure 3.2: Internal Components of KZ ZVX Earbud
An internal view of the KZ ZVX earbud, highlighting the 10mm dual-cavity dynamic driver, lightweight alloy cover, protective metal mesh, 2-pin socket, full-metal cavity, tuning filter, and memory foam eartips.
Key Features:
- 10mm Double Chamber Hyperlinear Dynamic Driver: Advanced driver technology for precise audio reproduction across the frequency spectrum.
- KZ Electronic Crossover Technology: Enables accurate control of ultra-bass, bass, mid, treble, and ultra-treble frequencies without significant sound loss.
- 4.8 Micron Thick Diaphragm: Reduces weight and improves vibration sensitivity for enhanced detail.
- Four Layers of Voice Coil: Significantly improves bass response, diving depth, strength, and elasticity.
- Detachable 0.75mm 2-Pin Cable: High-purity oxygen-free copper wire for clear signal transmission and customization options.
- Aesthetic and Ergonomic Design: Full metal shell with CNC processing for durability and comfortable ear-wrap wear.
4. Setup
4.1 Connecting the Cable
- Identify the left (L) and right (R) earpieces and the corresponding connectors on the cable. The cable connectors are typically marked.
- Align the 0.75mm 2-pin connector on the cable with the socket on the earpiece. Ensure the pins are correctly oriented.
- Gently push the connector into the earpiece socket until it is firmly seated. Do not force the connection.
- Repeat for the other earpiece.

Figure 4.1: Detachable 2-Pin Cable Connection
The detachable 2-pin interface allows for easy cable replacement and customization, ensuring a secure connection.
4.2 Wearing the Earphones
- Select the appropriate size of silicone eartips for a comfortable and secure fit. A good seal is crucial for optimal sound quality and bass response.
- Insert the earpieces into your ears. The KZ ZVX headphones are designed for an ear-wrap style, where the cable loops over the top of your ear.
- Adjust the earpieces and cable to ensure a snug fit that minimizes microphonics (cable noise) and provides comfort during extended listening sessions.

Figure 4.2: Proper Ear-Wrap Wearing Style
The KZ ZVX earbud designed for ergonomic fit and comfort, conforming to the ear's natural shape, with the cable wrapped over the ear.
5. Operating Instructions
Connect the 3.5mm plug of the cable to your audio source (e.g., smartphone, digital audio player, computer). The KZ ZVX headphones are designed for direct audio playback.
5.1 Inline Control (If applicable to your cable variant)
This model is specified as 'without mic', however, if you have a cable with an inline control button, refer to the following functions:

Figure 5.1: Inline Control Button Functions
A visual guide to the inline control button, detailing functions for short press (play/pause, answer/hang up), long press (decline call), double press (next song), and triple press (previous song).
- Short Press: Play/Pause music; Answer/End a call.
- Long Press: Decline an incoming call.
- Press Twice: Skip to the next song.
- Press Three Times: Go to the previous song.
6. Maintenance
- Cleaning: Regularly clean the eartips and the exterior of the earpieces with a soft, dry cloth. For eartips, they can be removed and gently washed with mild soap and water, then thoroughly dried before reattaching.
- Storage: When not in use, store the headphones in a clean, dry place, preferably in a protective case, to prevent tangling and damage to the cable or earpieces.
- Cable Care: Avoid sharply bending or pulling the cable, especially near the connectors, to prevent internal wire damage.
- Moisture: Keep the headphones away from excessive moisture and liquids. These headphones are not water-resistant.
- Temperature: Avoid exposing the headphones to extreme temperatures.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound or sound from only one side |
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| Poor sound quality (e.g., thin bass, distorted audio) |
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| Earphones fall out easily |
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| Cable connection feels loose or causes intermittent sound |
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8. Specifications
| Model | KZ ZVX |
| Driver Type | 10mm Dynamic Driver |
| Impedance | 25±3Ω |
| Sensitivity | 109±3dB |
| Frequency Response Range | 20-40000Hz |
| Plug Type | 3.5mm |
| Pin Type | 0.75mm 2-Pin |
| Wire Material | OFC Anaerobic Copper Wire |
| Wire Length | 120±5cm |
| Wearing Style | Ear Wrap |
| Material | Metal |
| Color | Black |
| Item Weight | 0.08 Kilograms (approx. 2.82 ounces) |
| Manufacturer | Shenzhen Yuanze Electronic Co.,Ltd |
9. Warranty and Support
The KZ ZVX In-Ear Headphones come with a standard manufacturer's warranty against defects in materials and workmanship. Please refer to the warranty card included in your package or contact your retailer for specific warranty terms and conditions.
For technical support, troubleshooting assistance, or inquiries regarding your product, please contact the customer service department of your purchase point or the manufacturer directly. Contact information can typically be found on the product packaging or the manufacturer's official website.