1. Rhagymadrodd
Thank you for choosing the YINYOO KZ ZSN Pro In-Ear Monitor Earphones. These earphones are designed to provide a high-fidelity audio experience with a hybrid dynamic and balanced armature driver system. This manual provides essential information for proper setup, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your earphones.

Image 1.1: KZ ZSN Pro In-Ear Monitor Earphones in gray.
2. Cynnwys Pecyn
Gwiriwch fod yr holl eitemau yn bresennol yn eich pecyn:
- 1 pair of KZ ZSN Pro In-Ear Monitor Earphones
- 1 detachable earphone cable
- 3 pairs of silicone eartips (S/M/L)
- 1 Llawlyfr Defnyddiwr (y ddogfen hon)
3. Setup and Wearing Instructions
3.1 Attaching the Cable
The KZ ZSN Pro earphones feature a detachable 2-pin cable for easy replacement and storage. Ensure the cable connectors are aligned correctly with the earphone sockets. The cable has a slot protection design to prevent pin breakage.
- Identify the 'L' (left) and 'R' (right) markings on both the earphones and the cable connectors.
- Gently push the 2-pin connector into the corresponding earphone socket until it is securely seated. Do not force the connection.

Image 3.1: Detachable 2-pin cable connection for KZ ZSN Pro earphones.
3.2 Selecting Eartips
Proper eartip selection is crucial for sound quality and comfort. Experiment with the included S, M, and L eartips to find the best fit for your ears. A good seal will enhance bass response and noise isolation.
3.3 Gwisgo'r Clustffonau
The KZ ZSN Pro earphones are designed for an ergonomic, over-ear fit to ensure stability and comfort during use.
- Identify the left ('L') and right ('R') earphones.
- Mewnosodwch y clustffon i mewn i gamlas eich clust.
- Guide the cable over the top of your ear, ensuring it sits comfortably and securely. The pre-formed ear hook helps maintain position.
- Adjust the earphone and cable until a comfortable and secure fit is achieved, creating a good seal in your ear canal.

Image 3.2: Schematic diagram illustrating correct wearing of KZ ZSN Pro earphones.
4. Cyfarwyddiadau Gweithredu
4.1 Chwarae Sain Sylfaenol
Connect the 3.5mm jack of the earphone cable to your audio source (smartphone, tablet, computer, etc.). Adjust the volume on your device to a comfortable listening level before placing the earphones in your ears.
4.2 Media Control (if applicable)
If your cable includes an inline remote, you can control media playback and calls:
- Gwasg Fer: Ateb/Diweddu Galwad, Chwarae/Saib Cerddoriaeth
- Pwyswch ddwywaith: Can nesaf
- Pwyswch Dair Gwaith: Caniad Blaenorol
- Gwasg Hir: Gwrthod Galwad
Note: Functionality may vary depending on your connected device and operating system.
5. Cynnal a Chadw a Gofal
- Glanhau: Regularly clean the eartips with a soft, damp cloth. Ensure no moisture enters the earphone drivers.
- Gofal Cebl: The detachable cable is designed for durability. Avoid sharp bends or excessive pulling. When detaching, pull directly on the connector, not the cable itself.
- Storio: When not in use, store your earphones in a clean, dry place, preferably in a protective case, to prevent tangling and damage.
- Gwrthiant Dŵr: The earphones are rated as waterproof. However, avoid prolonged submersion or exposure to high-pressure water. Dry thoroughly if exposed to moisture.
6. Datrys Problemau
6.1 Dim Sŵn neu Gyfaint Isel
- Ensure the 3.5mm jack is fully inserted into your audio device.
- Gwiriwch lefel y gyfrol ar eich dyfais sain.
- Verify that the earphone cable is securely connected to both earphones.
- Test with another audio source or another pair of headphones to isolate the issue.
6.2 Ansawdd Sain Gwael (Ystumio, Diffyg Bas)
- Ensure the eartips provide a proper seal in your ear canal. Try different sizes.
- Check for debris or earwax buildup in the earphone nozzles. Clean carefully if necessary.
- Some users report a faint 'snow' or static sound when no audio is playing or at very low volumes. This is a characteristic of some high-sensitivity earphones and is typically masked by audio playback.
6.3 Earphones Falling Out
- Ensure you are using the correct eartip size for a snug fit.
- Confirm the cable is routed over your ear correctly, utilizing the ear hook design for stability.
7. manylebau
The following table outlines the technical specifications of the KZ ZSN Pro In-Ear Monitor Earphones:
| Nodwedd | Manyleb |
|---|---|
| Enw Model | bc01pro |
| Math Gyrrwr Sain | Hybrid Driver (1 Dynamic, 1 Balanced Armature) |
| Ymateb Amlder | 7.4 Hz - 40 kHz |
| Sensitifrwydd | 104 dB |
| rhwystriant | 25 Ohm |
| Technoleg Cysylltedd | Wired |
| Clustffonau Jack | 3.5 mm Jack |
| Nodwedd cebl | Detachable 2-pin |
| Rheoli Sŵn | Unigedd Sain |
| Deunydd | Zinc Alloy, Resin, Metal, Plastic |
| Lefel Gwrthsefyll Dŵr | Dal dwr |
| Pwysau Eitem | 1.76 owns |
| Dimensiynau Cynnyrch | 1.57 x 4.72 x 7.87 modfedd |

Image 7.1: Internal structure of KZ ZSN Pro earphones showing hybrid drivers.

Image 7.2: Frequency response curve and internal components of KZ ZSN Pro earphones.
8. Gwarant a Chefnogaeth
YINYOO Audio is committed to providing high-quality products and customer satisfaction. Any reported issues will be addressed promptly, typically in the form of a replacement.
- For support or warranty inquiries, please contact YINYOO Audio customer service through the retailer where you purchased the product.
- Cadwch fanylion eich pryniant a gwybodaeth model eich cynnyrch wrth law wrth gysylltu â chymorth.