Sudio SD-2305
Sudio A1 Pro Wireless Earbuds User Manual
Model: SD-2305 | Brand: Sudio
Introduction
This manual provides comprehensive instructions for the Sudio A1 Pro Wireless Earbuds. Please read this manual carefully before using the product to ensure proper operation and to maximize your listening experience. Keep this manual for future reference.

Image: The Sudio A1 Pro wireless earbuds, shown alongside their compact charging case, highlighting their sleek black design.
What's in the Box
- Sudio A1 Pro Earbuds (Left and Right)
- Wireless Charging Case
- USB-C Charging Cable
- Eartips (Multiple Sizes)
- User Manual (This Document)
Setup
1. Initial Charging
Before first use, fully charge the Sudio A1 Pro earbuds and their charging case. Connect the provided USB-C cable to the charging port on the case and plug the other end into a USB power source (e.g., computer, wall adapter). The indicator light on the case will show charging status.
2. Pairing with Your Device (One-Step Automatic Pairing)
- Ensure Bluetooth is enabled on your mobile device (smartphone, tablet, laptop).
- Open the charging case. The earbuds will automatically enter pairing mode.
- On your device, search for "Sudio A1 Pro" in the Bluetooth settings and select it to connect.
- Once connected, a voice prompt will confirm successful pairing.
The earbuds support Bluetooth 5.3 for stable connectivity and have a wireless range of up to 10 meters.

Image: A person comfortably wearing the Sudio A1 Pro earbuds while relaxing, demonstrating the snug fit and ease of use.
Operating Instructions
Touch Controls
The Sudio A1 Pro earbuds feature intuitive touch controls for managing audio playback, calls, and Active Noise Cancellation (ANC).
| Action | Function |
|---|---|
| Single Tap (Either Earbud) | Play/Pause Music, Answer/End Call |
| Double Tap (Right Earbud) | Next Track |
| Double Tap (Left Earbud) | Previous Track |
| Triple Tap (Either Earbud) | Activate Voice Assistant |
| Long Press (Either Earbud) | Toggle ANC On/Off/Transparency Mode |
| Incoming Call (Long Press) | Reject Call |
Active Noise Cancellation (ANC)
The Sudio A1 Pro earbuds feature Active Noise Cancellation to reduce environmental sounds, allowing for a more immersive audio experience. Use the long press touch control to cycle through ANC On, ANC Off, and Transparency Mode (if available).
Making Calls
The earbuds are equipped with built-in microphones for clear call quality. Use the single tap control to answer or end calls.
Video: An official product video demonstrating the features and usage of the Sudio A1 Pro Wireless Earbuds, including active noise cancellation and touch controls.
Maintenance
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 cleaners or solvents.
Water Resistance
The Sudio A1 Pro earbuds are sweat and splash resistant (IPX4 rating). This means they can withstand light rain and sweat, making them suitable for workouts and outdoor activities. They are not designed for submersion in water. Avoid exposing them to excessive moisture or liquids.

Image: A visual representation of the Sudio A1 Pro earbuds' sweat and splashproof feature, indicated by a water droplet icon.
Troubleshooting
If you encounter issues with your Sudio A1 Pro earbuds, refer to the common problems and solutions below:
- Earbuds not pairing with each other or device: Ensure both earbuds are in the charging case, then remove them. They should automatically connect. If not, try resetting them (refer to the full user manual for specific reset instructions).
- Only one earbud playing audio: Place both earbuds back in the case, close the lid, wait a few seconds, then open the lid and remove them. This often re-syncs them.
- Poor sound quality: Check the ear tip size for a secure fit. Ensure the earbuds are clean and free of debris. Verify that your device's volume is appropriately set.
- Charging issues: Ensure the USB-C cable is securely connected to both the case and the power source. Try a different cable or power adapter.
Specifications
| Feature | Detail |
|---|---|
| Model Name | Sudio A1 Pro Black |
| Noise Control | Active Noise Cancellation |
| Connectivity Technology | Wireless (Bluetooth 5.3) |
| Wireless Range | 10 Meters |
| Battery Life (Earbuds) | Up to 5 hours playback (3 hours with ANC) |
| Total Playtime (with Case) | Up to 45 hours |
| Charging Time | 1.5 hours (USB-C) |
| Control Type | Touch Control |
| Water Resistance Level | IPX4 (Sweat and Splash Resistant) |
| Item Weight | 1.28 ounces (36.3 Grams) |
| Product Dimensions | 0.16 x 0.39 x 0.47 inches |
| Frequency Range | 20Hz-20kHz |
| Impedance | 16 Ohm |

Image: A display of Sudio A1 Pro charging cases in various available colors, including black, pink, sand, purple, and white.
Warranty and Support
For warranty information, technical support, or further assistance, please visit the official Sudio website or contact their customer service. Details can typically be found on the product packaging or the Sudio brand store on Amazon.
Sudio Brand Store: Visit Sudio Store on Amazon
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