1. Introduction
This manual provides detailed instructions for the safe and effective use of your OnePlus Buds 4 TWS Earbuds. Please read this manual thoroughly before using the product and retain it for future reference.
Image: OnePlus Buds 4 TWS Earbuds in Storm Gray charging case, open with earbuds inside.
2. What's in the Box
Verify that all items are present in your product package:
- OnePlus Buds 4 Earbuds (Left and Right)
- Charging Case
- USB Charging Cable
- Eartips (various sizes)
- User Manual
3. Product Overview
The OnePlus Buds 4 feature an in-ear design with a stem, housed in a compact charging case. The earbuds are equipped with dual drivers and dual DACs for enhanced audio performance.
Image: Close-up view of the OnePlus Buds 4 earbuds, highlighting the in-ear design.
Image: Diagram illustrating the internal components of the OnePlus Buds 4, including dual drivers and DACs.
4. Setup
4.1 Charging the Earbuds and Case
Before first use, fully charge the earbuds and charging case. Connect the provided USB cable to the charging port on the case and a power source. The indicator light on the case will show charging status.
- A full charge takes approximately 1.5 hours.
- A 10-minute charge can provide up to 11 hours of music playback.
- Total battery life with the charging case is up to 45 hours (ANC off).
Image: Battery life and fast charging information for OnePlus Buds 4.
4.2 Pairing with a Device
- Ensure the earbuds are in the charging case and the case lid is open.
- Press and hold the function button on the charging case until the indicator light flashes white, indicating pairing mode.
- On your device (smartphone, tablet, or computer), enable Bluetooth and search for "OnePlus Buds 4" in the list of available devices.
- Select "OnePlus Buds 4" to complete the pairing process.
Google Fast Pair: For Android devices, simply open the charging case near your phone, and a pop-up will appear for quick pairing.
Dual-Device Connection: The earbuds support simultaneous connection to two devices (e.g., phone and laptop) for seamless switching.
Image: Overview of key features including connectivity, latency, and durability.
5. Operating Instructions
5.1 Touch Controls
The OnePlus Buds 4 feature customizable touch controls for various functions:
- Slide up/down: Increase or decrease volume.
- Long touch/hold: Switch between Active Noise Cancellation (ANC), Adaptive, and Transparency modes.
- Single tap: Play or pause music.
- Double tap: Skip to the next song.
- Triple tap: Go to the previous song.
These settings can be customized further via the HeyMelody app (for non-OnePlus users) or phone settings (for OnePlus users).
Image: Customizable touch controls for the OnePlus Buds 4.
5.2 Active Noise Cancellation (ANC) & Adaptive Mode
The earbuds offer up to 55 dB of real-time adaptive noise cancellation, adjusting up to 800 times per second based on ambient noise. The Adaptive Mode dynamically switches between ANC and Transparency modes for optimal listening in various environments.
Image: Real-time dynamic Active Noise Cancellation capabilities.
Image: All-New Adaptive Mode for dynamic noise control.
5.3 Sound Features
Experience high-fidelity audio with dual DACs, an 11mm woofer, and a 6mm tweeter. The earbuds support LHDC 5.0 for studio-grade Hi-Res audio up to 1 Mbps 24-bit 192kHz.
- Sound Master EQ: Choose from pre-tuned EQ presets (Balanced, Serenade, Bass Mode) or customize your sound.
- Golden Sound: A personalized ear scan and listening test create a bespoke audio profile.
- OnePlus 3D Audio: Tailor your stereo soundscape for enhanced realism.
Image: Near Lossless sound quality with LHDC 5.0.
Image: Sound Master EQ and Golden Sound features for personalized listening.
5.4 Call Quality
The 3-mic system, powered by AI Clear Call algorithm, filters out ambient noise and wind for clear calls. It offers a 200% boost in voice cancellation compared to previous models.
Image: Illustration of the 3-mic system for clear calls.
5.5 Low Latency
With a 47ms low latency in game mode, audio syncs perfectly with your actions, providing a smoother gaming experience.
5.6 AI Translation & Voice Assistant
Three earbud taps can activate AI Translation on compatible OnePlus phones for real-time conversation in multiple languages. You can also use voice assistant shortcuts (Google Gemini, Google Assistant, or Apple Siri) for various tasks.
Image: AI Translation and AI Assistance features.
6. Maintenance
6.1 Cleaning
Regularly clean your earbuds and charging case to maintain optimal performance and hygiene. Use a soft, dry, lint-free cloth. Do not use abrasive materials or harsh chemicals.
- Gently wipe the earbuds, especially the eartips and mesh areas, to remove earwax or debris.
- Clean the charging contacts on both the earbuds and inside the case.
- Wipe the exterior of the charging case.
6.2 Water and Dust Resistance
The OnePlus Buds 4 earbuds have an IP55 rating for dust and water resistance, protecting them from sweat and light rain. The charging case is not water-resistant. Avoid submerging the earbuds in water. Water and dust resistance may diminish with device aging and are not covered under warranty if damage occurs.
7. Troubleshooting
If you encounter issues with your OnePlus Buds 4, refer to the following common solutions:
- Earbuds not pairing: Ensure earbuds are charged, in the case with the lid open, and in pairing mode. Turn off and on your device's Bluetooth. Try resetting the earbuds (refer to the full user guide for specific reset instructions).
- No sound or poor sound quality: Check volume levels on both earbuds and your connected device. Ensure earbuds are clean and properly seated in your ears. Try re-pairing the earbuds.
- Charging issues: Verify the charging cable and power adapter are working. Ensure charging contacts on earbuds and case are clean and free of debris.
- ANC not working effectively: Ensure earbuds are properly fitted in your ears. Try switching between ANC, Adaptive, and Transparency modes.
For more detailed troubleshooting, visit the official OnePlus support website.
8. Specifications
| Feature | Specification |
|---|---|
| Model Name | OnePlus Buds 4 |
| Model Number | E513A |
| Noise Control | Adaptive Noise Cancellation (up to 55 dB) |
| Connectivity Technology | Wireless (Bluetooth 5.4) |
| Bluetooth Range | 10 Metres (up to 250m with Steady Connect on select OnePlus phones) |
| Audio Driver Type | Dynamic Driver (11mm woofer, 6mm tweeter) |
| Audio Latency | 47 Milliseconds (Game Mode) |
| Battery Life (Earbuds) | Up to 11 hours (ANC off, AAC) |
| Battery Life (Total with Case) | Up to 45 hours (ANC off, AAC) |
| Charging Time | 1.5 Hours |
| Water Resistance Level | IP55 (Earbuds only) |
| Item Weight | 49 Grams (total) |
| Material | Plastic |
| Compatible Devices | Cellphones, Desktops, Laptops, Smart Watch, Tablets |
9. Warranty and Support
Your OnePlus Buds 4 are covered by a limited warranty. Please refer to the warranty card included in your package or visit the official OnePlus website for detailed warranty terms and conditions.
For further assistance, product registration, or to access the latest software updates, please visit the OnePlus Official Store or the OnePlus support website.
