Sudio SD-2305
Sudio A1 Pro Wireless Earbuds User Manual
Brand: Sudio | Model: SD-2305
Introduction
The Sudio A1 Pro Wireless Earbuds are designed to provide a seamless and high-quality audio experience. Featuring Bluetooth 5.3 connectivity, active noise cancellation, and a comfortable, waterproof design, these earbuds are suitable for various activities, from daily commutes to workouts. This manual will guide you through the essential steps to set up, operate, and maintain your Sudio A1 Pro earbuds.

Image: Sudio A1 Pro Wireless Earbuds and their charging case, showcasing the sand color variant.
What's in the Box
Ensure all the following items are present in your product packaging:
- Sudio A1 Pro Earbuds
- Wireless Charging Case
- USB-C Charging Cable
- Eartips (various sizes)
- User Manual

Image: An illustration detailing the components included in the Sudio A1 Pro product package.
Setup
1. Charging the Earbuds and Case
Before first use, fully charge the earbuds and the charging case. The charging case provides additional battery life for your earbuds.
- Connect the provided USB-C 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.

Image: A close-up view of the Sudio A1 Pro charging case, highlighting its compact design.
2. Pairing with Your Device
The Sudio A1 Pro earbuds feature one-step pairing for convenience.
- Open the charging case. The earbuds will automatically power on and enter pairing mode.
- On your device (smartphone, tablet, computer), go to Bluetooth settings.
- Select "Sudio A1 Pro" from the list of available devices.
- Once connected, you will hear an audio prompt, and the indicator light on the case will confirm successful pairing.
Note: If only one earbud connects, place both earbuds back in the case, close the lid, wait a few seconds, then open it again to re-initiate pairing. Ensure both earbuds are properly seated in the case.
Video: A short demonstration of the Sudio A1 Pro earbuds in use, highlighting their design and fit.
Operating Your Earbuds
Touch Controls
The Sudio A1 Pro earbuds feature intuitive touch controls for managing your audio and calls. The touch-sensitive area is located on the stem of each earbud.
| Action | Control |
|---|---|
| Play/Pause | Single tap on either earbud |
| Next Track | Double tap on the right earbud |
| Previous Track | Double tap on the left earbud |
| Answer/End Call | Single tap on either earbud |
| Reject Call | Press and hold on either earbud |
| Activate Voice Assistant | Triple tap on either earbud |
| Toggle ANC/Transparency Mode | Press and hold for 2 seconds on either earbud |
Active Noise Cancellation (ANC)
The Sudio A1 Pro earbuds feature Active Noise Cancellation to reduce environmental sounds, allowing for a more immersive listening experience. They also offer a Transparency Mode to let you hear your surroundings when needed.
- To switch between ANC and Transparency Mode, press and hold the touch control area on either earbud for 2 seconds.
- You will hear an audio prompt confirming the mode change.

Image: A visual representation of the earbuds' active noise cancelling capability, showing a user enjoying quiet.
Making and Receiving Calls
The earbuds are equipped with two microphones for clear call quality.
- To answer an incoming call, single tap either earbud.
- To end an active call, single tap either earbud.
- To reject an incoming call, press and hold either earbud.

Image: The Sudio A1 Pro earbuds and their cases, illustrating the dual microphone feature for calls.
Maintenance
Cleaning and Care
To ensure the longevity and optimal performance of your Sudio A1 Pro earbuds, follow these cleaning and care guidelines:
- Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth.
- Remove the eartips and clean them separately with mild soap and water if necessary. Ensure they are completely dry before reattaching.
- Use a dry cotton swab to gently clean the charging contacts on both the earbuds and inside the case.
- Avoid using abrasive materials, solvents, or harsh chemicals.
Water Resistance
The Sudio A1 Pro earbuds are rated IPX4 water resistant, meaning they are protected against splashing water from any direction. This makes them suitable for workouts and light rain.
- Do not submerge the earbuds or charging case in water.
- Avoid exposing them to pressurized water or high-velocity water, such as showering or swimming.
- If the earbuds get wet, wipe them dry thoroughly before placing them back in the charging case.

Image: The Sudio A1 Pro earbuds and case, accompanied by a water drop icon, signifying their sweat and splashproof design.
Troubleshooting
If you encounter issues with your Sudio A1 Pro earbuds, try the following solutions:
Earbuds Not Pairing or Only One Earbud Connects
- Ensure both earbuds are fully charged.
- Place both earbuds back into the charging case, close the lid, and wait for 10 seconds.
- Open the lid and try pairing again.
- On your device, forget or unpair "Sudio A1 Pro" from your Bluetooth settings, then attempt to pair again from scratch.
- If issues persist, perform a factory reset (refer to the full user manual for specific steps, usually involving holding a button on the case).
Poor Sound Quality or No Sound
- Check the volume level on your connected device.
- Ensure the earbuds are clean and free from debris, especially the speaker mesh.
- Try different eartip sizes to ensure a secure and comfortable fit, which can significantly impact sound quality and noise cancellation.
- Move closer to your connected device to avoid Bluetooth interference.
Earbuds Difficult to Remove from Case
- Due to the smooth design, grip the earbuds firmly by the stem when removing them.
- A slight twist while pulling upwards can help dislodge them from the magnetic contacts.
Specifications
| Feature | Detail |
|---|---|
| Model Name | Sudio A1 Pro |
| Connectivity Technology | Wireless (Bluetooth) |
| Bluetooth Version | 5.3 |
| Bluetooth Range | 10 Meters |
| Noise Control | Active Noise Cancellation, Passive Noise Cancellation |
| Battery Life (Earbuds) | Up to 5 Hours |
| Total Playtime (with Case) | Up to 45 Hours |
| Charging Time | 1.5 Hours (USB-C) |
| Water Resistance Level | IPX4 (Water Resistant) |
| Control Type | Touch Control (Media Control) |
| Microphones | 2 Microphones |
| Frequency Range | 20Hz-20kHz |
| Impedance | 16 Ohm |
| Earbud Weight | Approx. 4.6 ounces (total item weight) |
| Carrying Case Weight | 29.3 Grams |
| Material | Plastic, Aluminum |
| Compatible Devices | Android, iOS, macOS, Windows, Desktops, Laptops, Tablets, iPhone |
Warranty and Support
Sudio products are manufactured to high quality standards. For information regarding your product's warranty, please refer to the warranty card included in your packaging or visit the official Sudio website.
For further assistance, technical support, or to view frequently asked questions, please visit the Sudio Official Store on Amazon or their dedicated support channels.
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