1. Introduction
This manual provides detailed instructions for the Nillkin TW004 Wireless Earphones. Please read this manual carefully before using the product to ensure proper operation and to maximize its lifespan. Keep this manual for future reference.
2. Package Contents
Verify that all items listed below are present in your package:
- Nillkin TW004 Wireless Earphones (Left and Right)
- Charging Case
- USB Charging Cable
- User Manual
- CD (Note: The CD may contain drivers or additional software, though typically not required for standard Bluetooth earphone operation.)
3. Product Overview
The Nillkin TW004 Wireless Earphones are designed for a comfortable and stable audio experience. They feature advanced technology for clear sound and reliable connectivity.
Image 1: Nillkin TW004 Wireless Earphones and Charging Case. The earphones are shown in their sleek, cylindrical charging case, highlighting their compact design.
Key Features:
- Wireless Connectivity: Utilizes Bluetooth for seamless audio streaming.
- In-Ear Design: Provides a secure and comfortable fit.
- Long Battery Life: Up to 65 hours total playtime with the charging case.
- IPX5 Waterproof: Resistant to sweat and light rain, suitable for sports.
- Qualcomm QCC3020 Chip: Ensures stable transmission and efficient performance.
- Apt-X High Audio Decoding: Delivers lossless sound quality.
- CVC Noise Cancellation: Enhances call clarity by reducing background noise.
- Touch Control: Easy management of music and calls.
Image 2: Battery Life Overview. This graphic illustrates the total playtime of 65 hours, comprising 13 hours from the earphones and an additional 52 hours from the charging case.
Image 3: Touch Control Functionality. A user is shown interacting with the earphone, demonstrating the ease of touch-based controls for music and calls.
Image 4: Internal Technology. This image provides an exploded view of the earphone's internal components, highlighting the Qualcomm QCC3020 chip for stable transmission and Apt-X for high-quality audio decoding, along with the button battery.
Image 5: Lossless Sound Quality. A person wearing the earphone is depicted, emphasizing the product's capability to deliver high-fidelity audio.
Image 6: IPX5 Waterproof Feature. The earphones are shown with water droplets, illustrating their IPX5 waterproof rating, making them suitable for use during exercise or in light rain.
Image 7: Wireless 5.0 and Stable Transmission. A close-up of the Qualcomm QCC3020 chip highlights the advanced Bluetooth 5.0 technology for smooth music playback and reduced transmission loss.
Video 1: Nillkin TW004 Wireless Earphones Product Features. This video demonstrates key features including automatic power on and pairing, the Qualcomm QCC3020 chip, Apt-X high audio decoding for lossless sound, CVC noise cancellation for clear calls, TWS Plus technology, IPX5 waterproofing, mini body design for stable wearing, and the 65-hour battery life.
4. Setup
4.1 Initial Charging
- Before first use, fully charge the charging case and earphones.
- Place both earphones into the charging case.
- Connect the USB charging cable to the charging port on the case and to a power source.
- The indicator light on the case will show charging status and turn off or change color when fully charged.
4.2 Pairing with a Device
- Power On: Open the charging case, and the earphones will automatically power on and enter pairing mode. You may hear an audible prompt.
- Activate Bluetooth: On your smartphone or other Bluetooth-enabled device, go to the Bluetooth settings.
- Select Device: Look for "Nillkin TW004" (or similar) in the list of available devices and select it to connect.
- Confirmation: Once connected, you will hear a confirmation tone or voice prompt from the earphones.
- Automatic Reconnection: After initial pairing, the earphones will automatically connect to the last paired device when taken out of the case, provided Bluetooth is enabled on the device.
5. Operating Instructions
5.1 Touch Controls
The Nillkin TW004 earphones feature multi-function touch controls on each earbud. Specific functions may vary slightly depending on your device and application.
- Play/Pause: Single tap on either earbud.
- Next Track: Double tap the right earbud.
- Previous Track: Double tap the left earbud.
- Answer/End Call: Single tap on either earbud during an incoming call or active call.
- Reject Call: Press and hold either earbud for 2 seconds during an incoming call.
- Activate Voice Assistant: Triple tap on either earbud (e.g., Siri, Google Assistant).
5.2 Charging the Earphones and Case
- Earphones: Place the earphones into the charging case. They will automatically begin charging.
- Charging Case: Connect the charging case to a power source using the provided USB cable. The case's indicator lights will show the charging status.
6. Maintenance
To ensure the longevity and optimal performance of your Nillkin TW004 Wireless Earphones, follow these maintenance guidelines:
- Cleaning: Use a soft, dry, lint-free cloth to clean the earphones and charging case. Do not use abrasive cleaners, alcohol, or chemical solvents.
- Ear Tips: Regularly remove and clean the silicone ear tips with water and mild soap. Ensure they are completely dry before reattaching.
- Charging Contacts: Keep the charging contacts on both the earphones and the case clean and free of debris to ensure proper charging.
- Storage: When not in use, store the earphones in their charging case to protect them and keep them charged.
- Avoid Extreme Conditions: Do not expose the earphones or case to extreme temperatures, humidity, or direct sunlight for extended periods.
7. Troubleshooting
If you encounter issues with your Nillkin TW004 Wireless Earphones, refer to the following common problems and solutions:
| Problem | Possible Solution |
|---|---|
| Earphones do not power on. | Ensure the charging case and earphones are fully charged. Place earphones in the case and close/open the lid. |
| Earphones do not pair with device. | 1. Ensure Bluetooth is enabled on your device. 2. Make sure earphones are in pairing mode (indicator light flashing). 3. Forget/delete "Nillkin TW004" from your device's Bluetooth list and try pairing again. 4. Ensure earphones are sufficiently charged. |
| Only one earphone is working. | 1. Place both earphones back into the charging case, close the lid, wait a few seconds, then open it again. 2. Ensure both earphones are charged. 3. Try resetting the earphones (refer to specific reset instructions if available, or try forgetting the device and re-pairing). |
| No sound or low volume. | 1. Check the volume level on both your device and the earphones. 2. Ensure the earphones are properly connected to your device. 3. Try playing audio from a different application or source. |
| Charging case not charging. | 1. Check the USB cable and power adapter for damage. 2. Ensure the charging cable is securely connected to both the case and the power source. 3. Try a different USB cable or power adapter. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | TW004 |
| Item Model Number | CTW4JCWZH02US |
| Connectivity Technology | Wireless (Bluetooth) |
| Wireless Communication Technology | Bluetooth |
| Headphones Form Factor | In Ear |
| Ear Placement | In Ear |
| Special Feature | Lightweight |
| Waterproof Rating | IPX5 |
| Chipset | Qualcomm QCC3020 |
| Audio Decoding | Apt-X |
| Noise Cancellation | CVC (for calls) |
| Earphone Playtime | Up to 13 hours |
| Charging Case Backup | Up to 52 hours |
| Total Playtime | Up to 65 hours (with charging case) |
| Item Weight | 7.4 ounces (approx. 210g) |
| Package Dimensions | 5.87 x 5.2 x 1.65 inches |
| Batteries | 1 Lithium Ion battery required (included) |
| Manufacturer | Nillkin |
| Color | Gray |
9. Warranty and Support
For warranty information or technical support, please refer to the documentation included with your purchase or visit the official Nillkin website. Keep your proof of purchase for warranty claims.
