1. Introduction
Thank you for choosing the Tronsmart Soundi R4 Wireless Earbuds. This user 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
Ensure all items are present in your package:
- Tronsmart Soundi R4 Wireless Earbuds (Left and Right)
- Charging Case
- USB-C Charging Cable
- User Manual
- Adjustable Ear Caps (S/M/L)
3. Product Overview
Tronsmart Soundi R4 Earbuds in their charging case.
Detailed view of the left and right Soundi R4 earbuds.
Bottom view of the charging case showing the USB-C charging port.
The Tronsmart Soundi R4 earbuds feature a sleek, ergonomic design for a comfortable and secure fit. Each earbud is equipped with a touch-sensitive area for easy control of various functions.
Illustration of the smart touch control functions on the earbud.
4. Setup
4.1 Charging the Earbuds and Case
Before first use, fully charge the earbuds and the charging case. The case has a built-in 400mAh battery, providing extended playtime.
- Place the earbuds into the charging case, ensuring they are correctly seated.
- Connect the USB-C charging cable to the charging port on the case and the other end to a USB power adapter (not included) or a computer's USB port.
- The indicator light on the case will show charging status. Once fully charged, the light will change or turn off.
The earbuds and case offer up to 28 hours of total playtime, with 7 hours from the earbuds on a single charge.
4.2 Pairing with Your Device
The Soundi R4 earbuds utilize Bluetooth 5.3 for a stable and fast connection.
- Open the charging case. The earbuds will automatically enter pairing mode.
- On your device (smartphone, tablet, PC), enable Bluetooth.
- Search for "Tronsmart Soundi R4" in the list of available Bluetooth devices.
- Select "Tronsmart Soundi R4" to connect. Once connected, you will hear a confirmation tone.
- The earbuds will automatically reconnect to the last paired device when taken out of the case, if Bluetooth is enabled on the device.
Effortless pairing with Bluetooth 5.3 technology for a seamless connection.
5. Operating the Earbuds
5.1 Power On/Off
- Power On: Open the charging case, and the earbuds will automatically power on.
- Power Off: Place the earbuds back into the charging case and close the lid. They will automatically power off and begin charging.
5.2 Music Playback Control
Use the touch-sensitive area on either earbud for music control:
- Play/Pause: Single tap on either earbud.
- Next Track: Double tap on the right earbud.
- Previous Track: Double tap on the left earbud.
- Volume Up: Triple tap on the right earbud.
- Volume Down: Triple tap on the left earbud.
5.3 Call Management
The Soundi R4 features quad-mic call noise cancellation for clear calls.
- Answer/End Call: Single tap on either earbud.
- Reject Call: Press and hold on either earbud for 2 seconds.
Dual-mic call noise reduction provides enhanced clarity during calls.
5.4 Voice Assistant
- Activate Voice Assistant: Press and hold on either earbud for 2 seconds (when not on a call).
6. Maintenance
- Cleaning: Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth. Do not use harsh chemicals or abrasive materials.
- Ear Tips: Remove and clean the ear tips periodically. Ensure they are completely dry before reattaching.
- Storage: When not in use, store the earbuds in their charging case to protect them and keep them charged.
- Battery Care: To preserve battery life, avoid fully discharging the earbuds and case frequently. Charge them regularly, even if not used for extended periods.
- Water Resistance: The earbuds have an IPX4 rating, meaning they are resistant to splashing water and sweat. Do not submerge them in water or expose them to heavy rain. Dry them thoroughly if they get wet.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Earbuds not pairing | Bluetooth is off; earbuds are out of range; previously paired device is connected; low battery. | Ensure Bluetooth is on. Move earbuds closer to device. Disconnect from other devices. Charge earbuds and case. Try resetting earbuds (refer to manual for specific reset steps if available, otherwise general advice). |
| No sound from one earbud | Earbud not connected; low battery; earbud is dirty. | Place both earbuds back in the case, close, then reopen. Ensure both are charged. Clean earbud speaker mesh. |
| Charging case not charging | Cable issue; power adapter issue; dirty charging port. | Try a different USB-C cable and power adapter. Clean the charging port gently. |
| Poor call quality | Weak signal; microphone obstruction. | Move to an area with better signal. Ensure microphones are not covered. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Name | Sounfii R4 |
| Item Model Number | 1096448 |
| Connectivity | Wireless (Bluetooth 5.3) |
| Bluetooth Range | Up to 15 meters (49 feet) |
| Driver Size | 12mm Composite Titanium Driver |
| Impedance | 16 Ohm |
| Noise Control | Quad-mic Call Noise Cancellation (ENC) |
| Playtime (Earbuds) | Up to 7 hours (single charge) |
| Total Playtime (with Case) | Up to 28 hours |
| Charging Case Battery | 400mAh |
| Water Resistance | IPX4 (Sweat and splash resistant) |
| Dimensions | 6.3 x 2.9 x 5 cm |
| Weight | 45 g |
| Color | White |
| Included Components | Earbuds, Charging Case, USB-C Cable, User Manual, Ear Caps (S/M/L) |
9. Warranty and Support
Tronsmart products are designed and manufactured to the highest quality standards. For warranty information and technical support, please refer to the official Tronsmart website or contact their customer service directly. Keep your purchase receipt as proof of purchase for warranty claims.
For further assistance, please visit: Tronsmart Support
