Vivo TWS 4 Wireless Bluetooth Earphones User Manual

Introduction

Thank you for choosing the Vivo TWS 4 Wireless Bluetooth Earphones. These earphones are designed to provide a high-fidelity audio experience with advanced noise reduction capabilities and a comfortable, lightweight design. This manual will guide you through the setup, operation, and maintenance of your new earphones to ensure optimal performance and longevity.

Image: Vivo TWS 4 Earbuds and Charging Case highlighting HIFI sound quality, 55dB Noise Reduction, 12.2mm Dynamic drivers, IP54 Water Resistance, 45 Hours Long Battery Life, and Qualcomm S3 sound platform.

Specifications

Image: Vivo TWS 4 Earbuds and Charging Case with dimensions: 60mm (width), 46mm (height), 24mm (depth).

Setup

1. Initial Charging

Before first use, fully charge your Vivo TWS 4 earphones and charging case. Connect the Type-C charging cable to the charging case and a power source. The indicator light on the case will show charging status.

2. Pairing with a Device

1. Open the charging case. The earphones will automatically enter pairing mode.
2. On your device (smartphone, tablet, etc.), enable Bluetooth.
3. Search for available Bluetooth devices and select "Vivo TWS 4" from the list.
4. For compatible Vivo devices, a pop-up quick connection prompt may appear for seamless pairing.

3. Wearing the Earphones

Gently insert the earphones into your ears. The intelligent fit detection feature helps ensure a comfortable and secure fit for optimal sound and noise reduction performance. Adjust the earphones until they feel snug and stable.

Image: Vivo TWS 4 Earbuds in their Deep Blue charging case, ready for use.

Operating Instructions

1. Basic Controls

The Vivo TWS 4 earphones feature pressure-sensitive manipulation and sliding controls on the earbud stems. Specific gestures (e.g., tap, long press, slide) can be customized via the companion app for functions like play/pause, track skipping, volume adjustment, and activating voice assistant.

Image: Overview of comprehensive interactive experience features including Bluetooth 5.4, multi-device connection, LE Audio, personalized pop-up window, pressure-sensitive controls, and intelligent wear detection.

2. Noise Reduction Modes

The earphones offer 55dB multi-mode deep sea noise reduction. You can switch between different noise reduction modes to suit your environment:

• Deep Sea Noise Reduction: Provides up to 55dB noise reduction depth and 5000Hz noise reduction width, eliminating up to 99.8% of life noise.
• Customized Commuting Noise Reduction: Specific modes for aircraft, subway, and bus environments to optimize noise cancellation.
• AI Intelligent Wind Noise Resistance: Utilizes a windbreak net structure and Z-shaped cavity design to reduce wind noise by up to 90%.

Image: Detailed specifications of the 55dB multi-mode deep sea noise reduction, including depth, width, elimination percentage, and CAIA A+ certification.

Image: Illustration of multi-scene noise reduction modes for aircraft, subway, and bus environments.

Image: Graph illustrating AI adaptive noise reduction, showing different frequency response curves for automatic, mild, routine, and deep noise reduction modes.

Image: Explanation of AI intelligent wind-resistant noise reduction technology, detailing the windbreak net structure and Z-shaped cavity design.

3. AI Double Permeability Mode (Transparency Mode)

Activate the transparency mode to hear your surroundings without removing your earphones. This mode offers both standard permeability and vocal enhancement options, allowing you to engage in conversations or stay aware of your environment.

Image: Illustration of AI double permeability mode, showing vocal enhancement and standard permeability options for listening while staying aware of surroundings.

4. Call Functions

The earphones feature a 3-microphone AI call noise reduction system. This design, combined with an AI call noise reduction algorithm, ensures clear calls even in noisy environments.

Image: Diagram illustrating the placement of the FB Mic, FF Mic, and Talk Mic for the three-microphone AI call noise reduction system.

5. Intelligent Wear Detection

The earphones can accurately sense their wearing status. When an earbud is taken off, audio playback will automatically pause. When it is put back in, playback will resume without manual operation.

6. Multi-Device Connection

The Vivo TWS 4 supports multi-device dual connection, allowing two electronic devices to be connected simultaneously. You can switch between devices freely for seamless audio playback.

7. 3D Panoramic Audio

Experience immersive sound with 3D panoramic audio, created by Golden Ear Lab. This feature accurately restores four mainstream space modes: theatre, concert hall, recording studio, and vocal concert, providing a three-dimensional audio effect.

Image: Explanation of 3D Panoramic Audio, detailing its ability to create a three-dimensional sound effect and restore various acoustic environments like theatre and concert hall.

8. Special Functions

The earphones include several special functions:

• Jovi Voice: Voice assistant integration.
• QQ/WeChat Message Broadcast: Receive message notifications audibly.
• Find Headphones: Locate misplaced earphones.
• Smart Upgrade: Keep your earphones updated with the latest features.
• Call Broadcast: Announce incoming calls.
• Battery Display: View battery levels for both earphones and the charging case.

Maintenance

1. Cleaning

• Regularly clean the earphones and charging case with a soft, dry, lint-free cloth.
• Do not use abrasive cleaners, alcohol, or chemical solvents.
• Ensure charging contacts on both the earphones and case are free of dust and debris.

2. Charging Best Practices

• Always use the provided Type-C cable or a certified equivalent for charging.
• Avoid exposing the charging case or earphones to extreme temperatures.
• Do not leave the earphones uncharged for extended periods to preserve battery health.

3. Storage

• When not in use, store the earphones in their charging case to protect them from dust and damage.
• Keep the device in a cool, dry place, away from direct sunlight and moisture.

Troubleshooting

1. Earphones not pairing

• Ensure both earphones are in the charging case and the case has sufficient battery.
• Open the case lid to activate pairing mode.
• Turn off and on Bluetooth on your device.
• If issues persist, try resetting the earphones (refer to the app or manufacturer's support for specific reset instructions).

2. No sound or poor sound quality

• Check the volume level on both your device and the earphones.
• Ensure the earphones are properly seated in your ears.
• Clean any debris from the earphone nozzles.
• Verify that the earphones are connected to the correct device.

3. Earphones not charging

• Ensure the charging cable is securely connected to both the case and the power source.
• Check if the charging contacts on the earphones and inside the case are clean.
• Try a different charging cable or power adapter.

4. "Find Headphones" feature not working

• Ensure the earphones are powered on and within Bluetooth range of your connected device.
• The feature relies on the companion app; ensure the app is installed and has necessary permissions.

User Tips

• Charging Cable: While not explicitly listed as included, a Type-C charging cable is required for the charging case. Ensure you have one readily available.
• Tracking Feature: The "Find Headphones" feature can help locate misplaced earbuds. Utilize this function through the companion application if available.
• Optimal Fit: Experiment with different ear tip sizes to find the most comfortable and secure fit. A good seal is crucial for effective noise cancellation and sound quality.
• App Customization: Download the official Vivo companion app to unlock full customization options for controls, sound profiles, and noise reduction settings.

Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the documentation provided with your purchase or contact the official Vivo customer support. Keep your proof of purchase for warranty claims.