1. Product Overview
The Realfit F1 are True Wireless Stereo (TWS) Bluetooth earphones designed for high-fidelity audio and comfortable long-term wear. Featuring Bluetooth 5.3 for stable connections and intuitive touch controls, these earbuds offer an immersive listening experience.
Realfit F1 Earbuds and Charging Case (White)
Core Advantages of Realfit F1 Earphones
2. Package Contents
Please check the box for the following items:
- 2 x Bluetooth Earbuds (Left and Right)
- 1 x Charging Box
- 1 x Type-C Charging Cable
- 1 x User Manual
Realfit F1 Package List
3. Setup
3.1 Initial Charging
Before first use, ensure the charging box and earbuds are fully charged.
- Connect the provided Type-C charging cable to the charging box and a power source.
- While charging, the charging box will show a flashing red light.
- Once fully charged, the light will turn steady red.
3.2 Powering On
- Method 1 (Automatic): Take the earbuds out of the charging box. They will automatically power on.
- Method 2 (Manual): Press and hold the touching area on either earbud for 2 seconds.
Note: Earbuds cannot be powered on while they are charging inside the case.
3.3 TWS Pairing (Earbud-to-Earbud)
The left and right earbuds will automatically pair with each other when taken out of the charging case. This process typically takes about 5 seconds.
Troubleshooting TWS Pairing: If TWS pairing fails, press and hold the touching area on both earbuds for about 5 seconds to turn them off. Then, turn them back on, and they should automatically pair.
3.4 Device Pairing (Bluetooth Connection)
- Ensure the earbuds are powered on and in pairing mode (usually indicated by a flashing LED on one or both earbuds).
- On your device (smartphone, tablet, laptop), go to Bluetooth settings.
- Search for available devices and select "Realfit F1" from the list to connect.
Smart Device Compatibility (Android, iOS, Windows)
4. Operating Instructions
4.1 Touch Controls
The Realfit F1 earbuds feature intuitive touch controls for various functions:
| Function | Action |
|---|---|
| Power On | Take out from charging case OR Long press L/R earbud for 2 seconds |
| Power Off | Put into charging case OR Long press L/R earbud for 5 seconds |
| Play/Pause | Short press L/R earbud for 1 second |
| Volume Up | Double tap Right earbud |
| Volume Down | Double tap Left earbud |
| Next Song | Tap Right earbud 3 times |
| Previous Song | Tap Left earbud 3 times |
| Answer/Hang Up Call | Short tap L/R earbud |
| Reject Call | Long tap L/R earbud for 1 second |
| Voice Assistant (Siri/Google Voice) | Short press L/R earbud for 2 seconds |
Realfit F1 One-Touch Control Guide
4.2 Dual Host Functionality
The Realfit F1 earphones support a dual-host setup, meaning either earbud can function independently. Once both earbuds are successfully paired, you can place one earbud back into the charging box, and the other will automatically become the main earbud and continue operating normally.
Dual Host Feature: Use either earbud independently
5. Maintenance and Precautions
To ensure the longevity and optimal performance of your Realfit F1 earphones, please observe the following:
- Volume Control: Control the volume and duration of earphone use to prevent potential hearing damage.
- Environmental Safety: Do not use the headset in potentially dangerous environments where awareness of surroundings is critical.
- Driving Safety: Avoid using earphones to listen to music, make, or answer calls while driving to prevent distraction and ensure safety.
- Child Safety: Keep the earphones out of reach of children to prevent improper use and potential hazards.
- Physical Damage: Do not throw or drop the product, as this can cause damage.
- Temperature Exposure: Avoid storing or using the headset in environments where the temperature is below -20°C or above 45°C, as extreme temperatures can shorten the life of the headset and battery.
- Unauthorized Modifications: Do not disassemble, repair, or modify this product yourself. Unauthorized alterations will void the warranty.
- Battery Disposal: The battery in this product is not user-replaceable. Please dispose of it according to local regulations or hand it over to a professional organization for recycling. Do not dispose of it in fire.
- Long-Term Storage: If the earphones are not used for an extended period, charge them every 3 months to prolong the battery's service life.
6. Troubleshooting
- Earbuds automatically turn off: If the earphones are disconnected from your mobile device and no operation is performed for 5 minutes, they will automatically turn off. They will also turn off if the distance from the connected device exceeds 10-12 meters and no signal is received within approximately 5 minutes.
- TWS Pairing Failure: If the left and right earbuds fail to pair with each other, turn both earbuds off by pressing their touching areas for about 5 seconds. Then, turn them back on, and they should automatically re-pair.
- No Sound/Connection Issues: Ensure the earbuds are charged, powered on, and within range of your device. Re-pair the earbuds with your device if necessary.
7. Specifications
| Feature | Specification |
|---|---|
| Product Model | Realfit F1 |
| Bluetooth Version | V5.3 |
| Effective Distance | >10m |
| Speaker Diameter | 13mm |
| Impedance | 32Ω |
| Microphone Type | Silicon microphone |
| Microphone Sensitivity | -32dB ± 3dB |
| Speaker Power | 20mW*2 |
| Signal-to-Noise Ratio | >70DB |
| Distortion | <5% |
| Frequency Response | 20Hz-20KHz |
| Playing Time (Earbuds) | About 4 hours |
| Earbud Battery Capacity | 30mAh |
| Charging Box Battery Capacity | 250mAh |
| Material | ABS |
| Category | Earphones & Headphones |
| Certification | CE, FCC, RoHS |
| Origin | Mainland China |
All technical information is subject to actual performance.
Realfit F1 Parameter Configuration
Newly upgraded Bluetooth 5.3 for stable connection
8. User Tips
- For optimal sound quality and comfort, ensure the earbuds are properly seated in your ears. The ergonomic design is intended for long-term wear without discomfort.
- Regularly clean the earbuds and charging case with a soft, dry cloth to prevent dust and debris buildup, which can affect charging contacts and sound quality.
- To maximize battery life, always place the earbuds back into the charging case when not in use.
- If experiencing connection drops, try moving closer to your paired device or restarting both the earbuds and the device.
- Remember to charge the earbuds every three months if not used for a long period to maintain battery health.
Ergonomic design for comfortable long-term wear
9. Warranty & Support
9.1 Warranty Service
- Quality problems caused by the product itself are covered under warranty service. The validity period is subject to the three guarantees service stipulated by relevant national laws and regulations.
- The warranty does not cover man-made damage, cosmetic damage (e.g., scratches), or cases where a valid purchase certificate cannot be produced.
- The company is responsible for repair costs incurred during the warranty service, but not for transportation costs.
- Please retain your purchase certificate for warranty claims.
9.2 Additional Resources
For a detailed user manual in PDF format, please refer to the official document: Realfit F1 User Manual (PDF)
