ZIHNIC S05
ZIHNIC S05 Open-Ear Earhooks User Manual
Model: S05
1. Introduction
Thank you for choosing the ZIHNIC S05 Open-Ear Earhooks. These headphones are designed to provide a comfortable and immersive audio experience while keeping you aware of your surroundings. Featuring an open-ear design, long battery life, and IPX5 water resistance, the S05 is ideal for daily use, workouts, and outdoor activities. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your device.

Image: The ZIHNIC S05 Open-Ear Earhooks in black, showcasing their ergonomic design.
2. What's in the Box?
Upon opening the package, please verify that all components are present and in good condition:
- ZIHNIC S05 Open-Ear True Wireless Earbuds (x2)
- Charging Case (x1)
- User Manual (x1)
- Type-C Charging Cable (x1)

Image: A visual representation of the ZIHNIC S05 package contents, including the earbuds, charging case, and Type-C charging cable.
3. Setup
3.1 Initial Charging
Before first use, fully charge the ZIHNIC S05 earbuds and their charging case. Connect the provided Type-C charging cable to the charging port on the case and a USB power source. The indicator lights on the case will show the charging status. A full charge for the case and earbuds typically takes approximately 1.5 hours.

Image: The ZIHNIC S05 earbuds in their charging case, illustrating the quick charge and extended playback/standby times.
3.2 How to Wear
The ZIHNIC S05 features an open-ear earhook design for secure and comfortable wear. Follow these steps to properly wear your earbuds:
- Identify the left (L) and right (R) earbuds.
- Gently hook the earbud over your ear, ensuring the speaker part rests comfortably near your ear canal without entering it.
- Adjust the earhook for a snug and stable fit. The lightweight design ensures comfort for prolonged wearing.

Image: A step-by-step diagram illustrating the correct method for wearing the ZIHNIC S05 open-ear earhooks.
3.3 Bluetooth Pairing
To connect your ZIHNIC S05 earbuds to a device:
- Ensure the earbuds are charged and placed in the charging case.
- Open the charging case. The earbuds will automatically enter pairing mode, indicated by a flashing LED light on the earbuds.
- On your device (smartphone, tablet, laptop), go to Bluetooth settings and turn Bluetooth on.
- Search for available devices. Select "ZIHNIC S05" from the list.
- Once connected, the LED indicator on the earbuds will stop flashing, and you will hear a confirmation tone. The earbuds will automatically reconnect to the last paired device when taken out of the case.
4. Operating Instructions
4.1 Smart Touch Controls
The ZIHNIC S05 earbuds feature intuitive touch controls on each earbud. The following table outlines the functions:
| Action | Control | Function |
|---|---|---|
| Single Tap (L/R) | 1x L/R | Play/Pause Music, Answer/Hang Up Call |
| Long Press (L/R) for 2s | 2s L/R | Reject Call, Activate Voice Assistant |
| Triple Tap (R) | 3x R | Next Song |
| Triple Tap (L) | 3x L | Previous Song |
| Double Tap (R) | 2x R | Increase Volume |
| Double Tap (L) | 2x L | Decrease Volume |

Image: A detailed diagram illustrating the various touch control gestures and their corresponding functions on the ZIHNIC S05 earbuds.
4.2 Battery Life and Charging
The ZIHNIC S05 earbuds offer extended battery life and convenient charging:
- Playtime: Up to 7 hours on a single charge.
- Total Playtime with Charging Case: Up to 28 hours.
- Quick Charge: 10 minutes of charging provides approximately 1 hour of listening time.
- Charging Method: Use the provided Type-C cable to charge the case. Place earbuds in the case to charge them.
5. Maintenance
Proper maintenance ensures the longevity and performance of your ZIHNIC S05 earbuds:
- Cleaning: Regularly wipe the earbuds and charging case with a soft, dry, lint-free cloth. Do not use abrasive cleaners or solvents.
- Water Resistance: The earbuds are IPX5 waterproof certified, meaning they are resistant to sweat and light rain. Do not submerge them in water or expose them to strong jets of water. Dry them thoroughly before placing them back in the charging case.
- Storage: When not in use, store the earbuds in their charging case to protect them from dust and damage. Store in a cool, dry place away from extreme temperatures.
- Battery Care: To preserve battery health, avoid fully discharging the earbuds and case frequently. Charge them regularly, even if not in constant use.

Image: The ZIHNIC S05 earbuds and charging case, highlighting their IPX5 waterproof rating and sealed design for protection against sweat and rain.
6. Troubleshooting
If you encounter any issues with your ZIHNIC S05 earbuds, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Earbuds not pairing with device. | Bluetooth off, earbuds not in pairing mode, device too far, interference. | Ensure Bluetooth is on. Place earbuds in case, close, then open to re-enter pairing mode. Move closer to device. Turn off other Bluetooth devices. |
| No sound from earbuds. | Volume too low, not connected, media paused, earbud battery low. | Increase volume on device and earbuds. Reconnect Bluetooth. Check media playback status. Charge earbuds. |
| Earbuds not charging. | Cable issue, charging port dirty, earbuds not seated correctly in case. | Check Type-C cable and power source. Clean charging contacts on earbuds and case. Ensure earbuds are properly seated in the case. |
| Call quality is poor. | Weak signal, environmental noise, microphone obstruction. | Move to an area with better signal. Reduce background noise. Ensure microphone is not covered. |
If the issue persists, try resetting the earbuds (refer to the ZIHNIC support website for specific reset instructions if not covered here) or contact customer support.
7. Specifications
Key technical specifications for the ZIHNIC S05 Open-Ear Earhooks:
| Feature | Detail |
|---|---|
| Model Name | S05 |
| Connectivity Technology | Wireless (Bluetooth) |
| Wireless Communication Technology | Bluetooth |
| Ear Placement | Open Ear |
| Earpiece Shape | Ear hooks |
| Water Resistance Level | IPX5 (Water Resistant) |
| Battery Life | 28 Hours (with charging case) |
| Charging Time | Approx. 1.5 hours (for full charge) |
| Control Method | Touch |
| Item Weight | 50 Grams (total) |
| Material | Silicone |
| Frequency Range | 20 Hz - 20,000 Hz |
| Impedance | 16 Ohm |
| Audio Driver Type | Dynamic Driver |
| Compatible Devices | Smartphones, Tablets, Laptops |
8. Warranty and Support
ZIHNIC products are manufactured with high-quality standards. For warranty information, technical support, or any inquiries regarding your ZIHNIC S05 Open-Ear Earhooks, please refer to the official ZIHNIC website or contact their customer service directly. You can often find support resources, FAQs, and contact details on the brand's official store page.
Visit the ZIHNIC Store on Amazon for more information and support.
9. Important Safety Information
Please read and follow these safety guidelines to prevent injury or damage to your device:
- Do not disassemble, repair, or modify the product.
- Keep the product away from extreme temperatures, direct sunlight, and open flames.
- Avoid exposing the product to strong magnetic fields.
- Do not use the product at excessively high volumes for prolonged periods to prevent hearing damage.
- Be aware of your surroundings when using the earbuds, especially in traffic or hazardous environments, as the open-ear design allows ambient sound.
- Keep out of reach of children and pets.
10. Product Features Overview
A summary of the key features that make the ZIHNIC S05 an excellent choice:
- Open-Ear Design: Ensures comfort and situational awareness.
- All-Day Comfort: Lightweight (9 grams per earbud) and flexible earhooks for secure fit.
- Extended Battery Life: Up to 28 hours with the charging case.
- IPX5 Waterproof: Resistant to sweat and rain, suitable for active lifestyles.
- Smart Touch Control: Easy management of music, calls, and voice assistant.
- Top Stereo Sound: Rich sound experience with deep bass and clear audio.
- Clear Call Quality: Advanced bone conduction microphone reduces ambient noise.
- Wide Compatibility: Connects seamlessly with smartphones, tablets, and laptops via Bluetooth.

Image: A comprehensive visual overview of the ZIHNIC S05's key features, including sound quality, connectivity, comfort, battery, and controls.
11. Environmental Protection
This product contains electronic components and a battery. Please dispose of it responsibly according to local regulations. Do not dispose of with household waste. Recycle electronic devices at designated collection points to protect the environment.