1. Product Overview
The VOLT PLUS TECH F9 Mini Wireless V5.3 Bluetooth Earbuds offer a high-quality audio experience with advanced features such as Bluetooth 5.3 connectivity, IPX7 waterproofing, and touch controls. This manual provides detailed instructions for setup, operation, and maintenance.

Image 1.1: Package Contents. This image displays the items included in the product package: two earbuds, a Micro-USB charging cable, three pairs of ear adapters (small, medium, large), a power bank charging case, and a user manual.
2. Setup
2.1 Unboxing and Initial Charge
- Carefully remove all components from the packaging. Verify that all items listed in the 'Package Includes' section are present.
- Place both earbuds into the charging case.
- Connect the Micro-USB charging cable to the charging port on the case and plug the other end into a USB power source (e.g., computer, wall adapter).
- Allow the earbuds and charging case to fully charge before first use. The LED display on the charging case will indicate the charging status. A full charge typically takes approximately 30 minutes for the earbuds.
2.2 Pairing with a Device
- Ensure your device's Bluetooth function is enabled.
- Open the charging case. The earbuds will automatically power on and enter pairing mode. The indicator lights on the earbuds will flash.
- On your device, search for Bluetooth devices and select "F9 Mini" from the list.
- Once connected, the earbud indicator lights will stop flashing, and a voice prompt will confirm the connection.
- If pairing fails, place the earbuds back into the case, close it, and repeat the steps.
3. Operating Instructions
3.1 Power On/Off
- Power On: Open the charging case, and the earbuds will automatically power on. Alternatively, press and hold the touch control area on both earbuds for 3 seconds.
- Power Off: Place the earbuds back into the charging case and close the lid. Alternatively, press and hold the touch control area on both earbuds for 5 seconds.
3.2 Touch Controls

Image 3.1: Earbud Touch Control Functions. This diagram illustrates the various touch controls for the earbuds, including single tap for play/pause, double tap for connect/hang up, triple tap for volume adjustment, and quick double tap for next/previous track.
- Play/Pause: Single tap on either earbud (L/R).
- Next Song: Double tap quickly on the Left earbud (L).
- Previous Song: Double tap quickly on the Right earbud (R).
- Volume Up: Triple tap on the Right earbud (R).
- Volume Down: Triple tap on the Left earbud (L).
- Answer/End Call: Double tap on either earbud (L/R).
- Reject Call: Press and hold on either earbud for 2 seconds.
- Activate Voice Assistant (Siri/Android): Tap the touch control area twice on either earbud.

Image 3.2: Voice Assistant Activation. This image shows how to summon Siri or Android voice assistant with a double tap on the earbud.
3.3 Low Latency Performance
The earbuds feature low latency for an enhanced audio experience, particularly beneficial for gaming and video playback.

Image 3.3: Low Latency Performance. This image illustrates the earbuds connected to a smartphone, highlighting their low latency and high performance for media consumption.
4. Maintenance
4.1 Cleaning
- Regularly clean the earbuds and charging case with a soft, dry, lint-free cloth.
- Do not use abrasive cleaners, solvents, or aerosol sprays.
- Gently remove any earwax or debris from the earbud tips and speaker mesh using a small, soft brush or cotton swab.
4.2 Water Resistance (IPX7)
The earbuds are rated IPX7 waterproof, meaning they can withstand immersion in water up to 1 meter for 30 minutes. This makes them suitable for sports and outdoor activities where exposure to sweat or rain is expected. The charging case is not waterproof.

Image 4.1: IPX7 Waterproof Feature. This image depicts the earbuds submerged in water, demonstrating their IPX7 water resistance for protection against splashes, rain, and sweat.
4.3 Storage
- When not in use, store the earbuds in their charging case to protect them and ensure they remain charged.
- Store in a cool, dry place away from direct sunlight and extreme temperatures.
5. Troubleshooting
| Issue | Possible Cause | Solution |
|---|---|---|
| Earbuds not pairing | Earbuds not in pairing mode; Bluetooth off on device; out of range. | Ensure earbuds are out of case and flashing; enable Bluetooth on device; move closer to device. |
| Only one earbud working | Earbuds not properly synced; low battery on one earbud. | Place both earbuds back in the case, close, then reopen to re-sync. Ensure both are charged. |
| No sound | Volume too low; not connected; media paused. | Increase volume on device and earbuds; check Bluetooth connection; ensure media is playing. |
| Charging issue | Cable or power source fault; dirty charging contacts. | Try a different cable or power source. Clean charging contacts on earbuds and case. |
6. Specifications
| Feature | Detail |
|---|---|
| Model Name | F9 Mini |
| Bluetooth Version | 5.3 |
| Wireless Communication Technology | Bluetooth |
| Water Resistance Level | IPX7 (Earbuds only) |
| Charging Time | Approximately 30 minutes (earbuds) |
| Battery Life | Up to 8 hours (earbuds), 24-26 hours with charging case |
| Headphones Jack | MicroUSB (for charging case) |
| Control Method | Touch |
| Compatible Devices | Android, iOS, Mac, Vivo T1x, Windows |
| Item Weight | 4 ounces |
| Product Dimensions | 1.5 x 1 x 1.8 inches |
7. Warranty and Support
7.1 Warranty Information
VOLT PLUS TECH products are covered by a limited warranty against defects in materials and workmanship. Please refer to the warranty card included in your package or visit the official VOLT PLUS TECH website for detailed warranty terms and conditions.
7.2 Customer Support
For technical assistance, troubleshooting, or warranty claims, please contact VOLT PLUS TECH customer support. Contact information can typically be found on the product packaging or the official brand website.
When contacting support, please have your product model number (F9 Mini) and purchase details ready.





