Introduction
Thank you for choosing the FINEBLUE K55 Wireless Bluetooth Earphones. This device offers a seamless audio experience with advanced features like Bluetooth 5.2 connectivity, a long listening and talk time of up to 20 hours, and quick charging capabilities. Designed for convenience, it includes a call vibration reminder, intelligent voice prompts, and multi-device compatibility. Please read this manual carefully to ensure proper use and optimal performance of your earphones.
Package Contents
Please check the package for the following items:
- FINEBLUE K55 Wireless Bluetooth Earphone
- USB Type-C Charging Cable
- Replaceable Earcaps (S, M, L sizes)
- User Manual
- Optional: Earphone storage bag (depending on package variant)
Product Overview
Familiarize yourself with the different parts of your FINEBLUE K55 earphone:
- Earphone: The audio output component.
- Telescoping Button: Used to retract the earphone cable.
- MFB Button (Multi-Function Button): Controls power, calls, and music playback.
- TYPE-C Port: For charging the device.
- LED Display: Shows battery level and other status indicators.
- Volume + Button: Increases volume.
- Volume - Button: Decreases volume.
Specifications
| Feature | Specification |
|---|---|
| Model | K55 |
| Bluetooth Version | V5.2 |
| Transmission Distance | 10M |
| Transmission Frequency | 2.4GHz |
| Charging Voltage | DC5V |
| Charging Time | Less than 20 minutes (for full charge) |
| Talk Time | 20 hours |
| Music Time | 20 hours |
| Standby Time | About 180 days |
| Battery Capacity | 140mAh (5C Battery) |
| Body Size | 56(L)*25(W)*13(H)mm (including back clip height of 20mm) |
| Support Protocols | HANDSET/HandFree/A2DP/AVRCP |
| Features | Call Vibration Reminder, Intelligent Voice Prompt, Chinese/English Tone Switching, Earphone Power Display, Dual Connection (2 phones) |
| Material | PVC, Plastic |
| Waterproof | Yes |
| With Microphone | Yes |
| Active Noise-Cancellation | Yes |
| Control Button | Yes |
| Volume Control | Yes |
Setup Guide
1. Charging the Earphones
Before first use, fully charge your FINEBLUE K55 earphones. The device features a built-in 5C battery for fast charging.
- Connect the provided USB Type-C charging cable to the TYPE-C port on the earphone.
- Plug the other end of the cable into a compatible USB power adapter (DC5V) or a computer's USB port.
- The LED display will indicate the charging status. A full charge takes approximately 20 minutes. You can achieve 50% charge in just 10 minutes.
2. Pairing with a Bluetooth Device
The FINEBLUE K55 earphones are compatible with most Bluetooth-enabled devices, including mobile phones (iOS and Android), tablets, and laptops.
- Ensure the earphones are sufficiently charged and powered off.
- Press and hold the MFB button until the LED display shows a pairing indicator (refer to the LED display for specific pairing mode indication, usually a flashing light).
- On your mobile device, navigate to the Bluetooth settings and turn Bluetooth on.
- Search for available devices. You should see "FINEBLUE K55" or a similar name appear in the list.
- Select "FINEBLUE K55" to connect. Once connected, the LED display will show a steady light or a specific connected indicator, and you may hear a voice prompt.
Note: If connecting to a computer without built-in Bluetooth, you may need to purchase a separate Bluetooth adapter.
Operating Instructions
Power On/Off
- Power On: Press and hold the MFB button for a few seconds until the LED display lights up and you hear a power-on prompt.
- Power Off: Press and hold the MFB button for a few seconds until the LED display turns off and you hear a power-off prompt.
Call Management
The FINEBLUE K55 features one-key operation for smart call management:
- Answer Call: Short press the MFB button.
- End Call: Short press the MFB button during a call.
- Reject Call: Press and hold the MFB button for 2 seconds during an incoming call.
- Redial Last Number: Double-press the MFB button.
- Switch Call (between earphone and phone): During a call, press and hold the MFB button for 2 seconds.
Music Playback
- Play/Pause: Short press the MFB button.
- Next Track: Press and hold the Volume + button.
- Previous Track: Press and hold the Volume - button.
Volume Control
- Increase Volume: Short press the Volume + button.
- Decrease Volume: Short press the Volume - button.
Intelligent Voice Broadcast
The earphones provide intelligent voice prompts for various statuses, including incoming call numbers and headset status (e.g., "Battery is low," "To turn it off," "Pairing he connected," "distance Too far").
Call Vibration Reminder
The earphone features a vibration reminder for incoming calls, ensuring you don't miss important communications.
Selfie Function
The earphone supports a one-click photo function, allowing you to take pictures from a distance (within 10 meters) using the MFB button.
Language Switching
The earphone supports switching between Chinese and English voice prompts. Refer to the specific instructions in the included quick start guide for the button combination to change the language.
Maintenance
- Cleaning: Wipe the earphones with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
- Storage: Store the earphones in a cool, dry place away from extreme temperatures and direct sunlight.
- Water Resistance: The earphones are waterproof, but avoid prolonged exposure to water or submersion. Ensure the Type-C port cover is securely closed.
- Earcaps: Regularly clean or replace earcaps for hygiene and optimal sound quality.
Troubleshooting
| Problem | Possible Solution |
|---|---|
| Earphone does not power on. | Ensure the battery is charged. Connect to a power source using the Type-C cable. |
| Cannot pair with device. | 1. Ensure earphones are in pairing mode (flashing LED). 2. Make sure Bluetooth is enabled on your device. 3. Move the earphones closer to your device. 4. Forget the device in your phone's Bluetooth settings and try pairing again. |
| No sound or low volume. | 1. Check the volume levels on both the earphone and your connected device. 2. Ensure the earphone is properly connected to your device. 3. Try reconnecting the earphone. |
| Call vibration reminder not working. | Ensure the feature is enabled (if applicable) and the earphone is properly connected. |
| iOS battery display not showing. | Ensure your iOS device is updated and the earphone is connected. This feature is supported by iOS devices. |
User Tips
- Secure Fit: Use the appropriate size earcaps to ensure a comfortable and secure fit, which also helps with sound quality and noise isolation.
- Lapel Clip Comfort: The lapel clip design allows you to securely attach the earphone to your clothing, preventing loss and ensuring the earphone cable doesn't pull uncomfortably.
- Dual Device Convenience: Take advantage of the ability to connect to two mobile phones simultaneously for seamless switching between personal and work calls.
Frequently Asked Questions (FAQ)
- Q: Can I connect the FINEBLUE K55 to two phones at the same time?
- A: Yes, the FINEBLUE K55 supports dual connection, allowing you to connect to two mobile phones simultaneously.
- Q: Is the earphone compatible with both iOS and Android devices?
- A: Yes, the earphones are fully compatible with both iOS and Android operating systems, as well as other Bluetooth-enabled devices.
- Q: How long does it take to fully charge the earphones?
- A: The earphones feature quick charging, reaching a full charge in less than 20 minutes. You can get 50% charge in just 10 minutes.
- Q: Does the earphone vibrate for incoming calls?
- A: Yes, the FINEBLUE K55 includes a call vibration reminder function to alert you to incoming calls.
Warranty and Support
For any product-related inquiries, technical support, or warranty information, please contact the seller or refer to the warranty card included in your package. Keep your purchase receipt as proof of purchase.
