1. Introduction
Thank you for choosing the Sudio F4 Portable Bluetooth Speaker. This manual provides essential information for setting up, operating, and maintaining your speaker to ensure optimal performance and longevity. Please read this manual thoroughly before using the product.
2. Package Contents
Please check the box for the following items:
- Sudio F4 Portable Bluetooth Speaker
- USB-C Charging Cable
- Quick Start Guide
3. Product Overview
Familiarize yourself with the Sudio F4 speaker's components and controls.
Figure 3.1: Sudio F4 Portable Speaker, front view. This image displays the speaker's cylindrical design with a perforated metal grille and the Sudio logo prominently featured on the front.
Figure 3.2: Rear view of Sudio F4 speaker, highlighting control panel and USB-C port. This image shows the vertical control panel with power, volume, and Bluetooth buttons, along with the USB-C charging port at the bottom.
Control Buttons:
- Power Button (ⓘ): Press and hold to power on/off.
- Volume Down (-): Press to decrease volume.
- Volume Up (+): Press to increase volume.
- Play/Pause Button (▶∣∣): Press to play or pause music.
- Bluetooth Button (ⓒ): Press to enter pairing mode.
Ports:
- USB-C Charging Port: For charging the speaker.
4. Setup
4.1. Charging the Speaker
- Connect the supplied USB-C charging cable to the speaker's USB-C port.
- Connect the other end of the cable to a USB power adapter (not included) or a computer's USB port.
- The LED indicator will show charging status. A full charge provides approximately 25 hours of playtime.
4.2. Powering On/Off
- To Power On: Press and hold the Power Button (ⓘ) for 2 seconds. The LED indicator will light up.
- To Power Off: Press and hold the Power Button (ⓘ) for 2 seconds. The LED indicator will turn off.
4.3. Bluetooth Pairing
- Ensure the speaker is powered on.
- Press the Bluetooth Button (ⓒ) to enter pairing mode. The LED indicator will flash rapidly.
- On your device (smartphone, tablet, computer), enable Bluetooth and search for available devices.
- Select "Sudio F4" from the list of devices.
- Once connected, the LED indicator will stop flashing and remain solid. You are now ready to play audio.
5. Operating Instructions
5.1. Audio Playback
- Play/Pause: Press the Play/Pause Button (▶∣∣).
- Volume Up: Press the Volume Up (+) button.
- Volume Down: Press the Volume Down (-) button.
- Next Track: Press and hold the Volume Up (+) button.
- Previous Track: Press and hold the Volume Down (-) button.
5.2. Answering/Ending Calls
When connected to a smartphone, the Sudio F4 can be used for hands-free calls.
- Answer Call: Press the Play/Pause Button (▶∣∣).
- End Call: Press the Play/Pause Button (▶∣∣) during a call.
- Reject Call: Press and hold the Play/Pause Button (▶∣∣).
6. Maintenance
6.1. Cleaning
- Wipe the speaker with a soft, dry, lint-free cloth.
- Do not use abrasive cleaners, alcohol, or chemical solvents, as these may damage the surface.
6.2. Storage
- Store the speaker in a cool, dry place away from direct sunlight and extreme temperatures.
- If storing for an extended period, charge the battery periodically to maintain its health.
7. Troubleshooting
If you encounter issues with your Sudio F4 speaker, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Speaker does not power on | Low battery | Charge the speaker using the USB-C cable. |
| No sound | Volume too low or device not connected | Increase speaker and device volume. Ensure Bluetooth is connected. |
| Cannot pair via Bluetooth | Speaker not in pairing mode or device too far | Press the Bluetooth button to enter pairing mode. Move device closer to speaker. Forget "Sudio F4" on your device and try pairing again. |
| Poor audio quality | Interference or distance | Move the speaker closer to your device. Avoid obstacles between the speaker and device. |
8. Specifications
| Feature | Specification |
|---|---|
| Model Number | F4WHT |
| Bluetooth Version | 5.4 |
| Battery Life | Up to 25 hours |
| Output Power | 15 Watts |
| Connectivity | Bluetooth, USB-C (charging) |
| Water Resistance | Yes (Waterproof) |
| Dimensions (L x W x H) | 8.9 x 8.7 x 20.6 cm |
| Weight | 300 grams |
| Audio Output Mode | Surround |
| Frequency Response | 20 KHz |
9. Warranty and Support
9.1. Manufacturer's Warranty
The Sudio F4 Portable Bluetooth Speaker comes with a 2-year manufacturer's warranty from the date of purchase. This warranty covers manufacturing defects and ensures the product meets its specified performance standards under normal use. Please retain your proof of purchase for warranty claims.
9.2. Customer Support
For further assistance, troubleshooting not covered in this manual, or warranty inquiries, please visit the official Sudio website or contact their customer support directly. Contact information can typically be found on the Sudio website or in the Quick Start Guide included with your product.
