1. Introduction
Thank you for purchasing the AOC ACT3525 True Wireless Earbuds. This manual provides detailed instructions on how to set up, operate, and maintain your earbuds to ensure optimal performance and longevity. Please read this manual thoroughly before using the product.
2. Package Contents
Verify that all items listed below are included in your package:
- AOC ACT3525 True Wireless Earbuds (Left and Right)
- Charging Case
- USB Type-C Charging Cable
- Eartips (S, M, L sizes)
- User Manual

Image: Contents of the AOC ACT3525 earbud package.
3. Product Overview
3.1 Earbud Components
Each earbud is equipped with a 13mm dynamic driver for rich audio and multiple microphones for clear communication and noise cancellation.

Image: Detailed view of an earbud showing microphone placement.
3.2 Charging Case
The charging case features an LED display to show the battery level of both the case and the earbuds.

Image: Charging case with LED battery indicator.
4. Setup
4.1 Initial Use
Before first use, remove the insulation film from the charging contacts on the earbuds. Place the earbuds back into the charging case for a few seconds to activate them. Fully charge the earbuds and case before initial use.
4.2 Pairing with a Device
- Ensure the earbuds are charged.
- 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, etc.), enable Bluetooth.
- Search for "AOC ACT3525" in the list of available Bluetooth devices and select it to connect.
- Once connected, the LED indicator on the earbuds will turn off or show a steady light, depending on the model.
The earbuds support automatic pairing. After the initial pairing, they will automatically connect to the last paired device when removed from the charging case.

Image: Bluetooth 6.0 pairing process.
5. Operating Instructions
5.1 Touch Controls
The earbuds feature touch-sensitive controls for various functions:
| Action | Function |
|---|---|
| Single Tap (L/R) | Play/Pause, Answer/End Call |
| Double Tap (L) | Previous Track |
| Double Tap (R) | Next Track |
| Triple Tap (L/R) | Activate Voice Assistant |
| Long Press (L/R) | Switch ANC/Transparency/Normal Mode, Reject Call |

Image: Earbud touch control functions.
5.2 Active Noise Cancellation (ANC) & Transparency Mode
The earbuds feature Active Noise Cancellation (ANC) to reduce ambient noise by up to 39dB, allowing for an immersive listening experience. Transparency Mode allows you to hear your surroundings without removing the earbuds, enhancing safety and convenience.
To switch between ANC, Transparency, and Normal modes, long-press the touch area on either earbud.

Image: User experiencing ANC in a busy setting.

Image: App interface for noise control modes.
5.3 Making Calls
The earbuds are equipped with 6 microphones and AI noise reduction technology to ensure clear voice transmission during calls, even in noisy environments.
- Answer Call: Single tap either earbud.
- End Call: Single tap either earbud.
- Reject Call: Long press either earbud.
5.4 Dedicated App and Custom EQ
Download the dedicated AOC app to unlock advanced features, including custom equalizer (EQ) settings. The app offers 6 preset EQ modes and allows you to create your own custom sound profiles.

Image: Custom EQ settings within the dedicated app.
6. Charging
To charge the earbuds, place them into the charging case. The LED display on the case will show the charging status. To charge the case, connect it to a power source using the provided USB Type-C cable.
A full charge provides up to 8 hours of playback for the earbuds, and up to 45 hours total with the charging case.

Image: Earbuds and case showing battery life.
7. Maintenance
Proper maintenance ensures the longevity and performance of your earbuds.
- Cleaning: Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth. Do not use harsh chemicals or abrasive materials.
- Eartips: Remove eartips and clean them with water and mild soap if necessary. Ensure they are completely dry before reattaching.
- Charging Contacts: Keep the charging contacts on both the earbuds and the case clean and free of debris to ensure proper charging.
- Storage: When not in use, store the earbuds in their charging case to protect them from dust and damage.
- Water Resistance: The earbuds are IPX5 water-resistant, meaning they can withstand splashes and sweat. Do not submerge them in water or expose them to heavy rain.
8. Troubleshooting
If you encounter issues with your earbuds, refer to the following common solutions:
| Problem | Possible Solution |
|---|---|
| Earbuds not pairing | Ensure earbuds are charged. Turn off and on Bluetooth on your device. Forget the device in Bluetooth settings and re-pair. |
| No sound from one earbud | Place both earbuds back in the case, close it, then open again. Check device audio balance settings. |
| Charging issues | Clean charging contacts on earbuds and case. Try a different USB-C cable and power adapter. |
| ANC not effective | Ensure eartips provide a good seal. Try different sized eartips. Ensure ANC mode is activated. |
| Poor call quality | Ensure microphones are not obstructed. Move to a quieter environment. |
If the problem persists, please contact customer support.
9. Specifications
| Feature | Detail |
|---|---|
| Model | ACT3525 |
| Brand | AOC |
| Color | Matte Black |
| Bluetooth Version | 6.0 |
| Driver Size | 13mm Dynamic |
| Noise Cancellation | Active Noise Cancellation (ANC) up to 39dB |
| Microphones | 6-mic AI Noise Reduction for Calls |
| Playback Time | Up to 8 hours (earbuds), up to 45 hours (with charging case) |
| Charging Port | USB Type-C |
| Water Resistance | IPX5 |

Image: Earbud and case dimensions with eartip sizes.
10. Safety Information
Please observe the following safety guidelines:
- Do not expose the earbuds or charging case to extreme temperatures.
- Avoid dropping or applying excessive force to the product.
- Keep out of reach of children and pets.
- Do not attempt to disassemble or modify the product.
- Use only the provided charging cable or a certified equivalent.
- Prolonged exposure to loud sounds may cause hearing damage. Adjust volume to a safe level.
11. Warranty and Support
AOC products come with a standard manufacturer's warranty. For specific warranty terms and conditions, please refer to the warranty card included in your package or visit the official AOC website.
For technical support, troubleshooting assistance, or service inquiries, please contact AOC customer support through their official website or the contact information provided in your product documentation.
