Bluetooth Earbuds User Manual
Model: F9
Specifications of Earbuds
- Product Name: F9
- Bluetooth Version: Version 5.0
- Protocol: Supports HFP 1.7, HSP 1.2, AVRCP 1.6, SPP 1.2 and PBAP 1.0
- Chipset: BT8832A
- Working distance: 10M
- Call Time: 5-6H (1 time full charged)
- Play Music Time: 5-6H (1 time full charged)
- Standby time: 650H (With charger case)
- Frequency: 2402MHz~2480MHz
- Battery type: 3.7V, >50mA Li Battery
- Charging Time: 1-2H
- Working Temperature: -10°-55°
Specifications of Charger Case
- Input current: 5V-1A
- Output current: 5V-1A
- Battery type: 3.7V
- Charging time: 1-2H
Sketch
Earbud Components:
- Battery Level Indicator
- Multifunction Touch Button
- Earbud LED Indicator
- Battery Level Display
- USB Port
Fitting:
- L for Left, R for Right
- Earcaps head down, smaller heads up.
- Adjust to the best fit.
How to Operate the Earbuds
- Ensure the charging case has power. If not, fully charge it. Place earbuds in the case to confirm power (indicator lights up).
- Take both earbuds out of the charging case. They will automatically turn on and pair. (Voice prompts: power on, left channel, right channel, waiting for connection).
- Turn on your phone's Bluetooth and select "F9" to connect. (Voice prompt: Connected).
How to Pairing
Steps:
- Turn on Bluetooth in your device's settings.
- Select "F9" from the list of Bluetooth devices.
- Click to connect.
Note: If "F9" is disconnected, turn off Bluetooth and then turn it back on to reconnect.
Warming Remain
For first-time use or after a long period of inactivity, charge the case and earbuds. Keep within 10 meters in an unobstructed environment to avoid connection issues.
Indicator Description
Charging the Earbuds: Place earbuds in the charging case and cover. Earbud indicator: Red when charging, off when fully charged. Charging case indicator: Flashes green when charging, off when fully charged.
Charging the Charging Case: Connect a 5V/1A USB cable to the charging port. The middle digit on the display shows the case's power level. "100" indicates a full charge. Charging case indicator: Flashes green when charging, off when fully charged.
Charging a Mobile Phone: Connect a USB cable to the case's USB port. Case indicator: Turns green when charging, off when fully charged.
How to Operate
- Turn on: Press and hold the touch button for 3 seconds, or remove earbuds from the case.
- Turn off: Press and hold the touch button for 5 seconds (LED turns red and stays on), or place earbuds back into the charging case.
- Answer/Hang up: Short press the touch button once during an incoming call or call.
- Reject Call: Press and hold the touch button for 3 seconds.
- Start Siri: Long press the right or left earbud for 1 second until "DU" is heard.
- Next/Previous Song: Double-click the right earbud (R) for the next song, double-click the left earbud (L) for the previous song.
- Volume +/-: Press the right earbud (R) three times continuously to increase volume. Press the left earbud (L) three times continuously to decrease volume. Volume can also be adjusted on the phone.
Single Earbud Mode
When earbuds are not paired together, take out either earbud. It will prompt "turn on." After 3 seconds, the blue light flashes, then red and blue lights flash alternately. Enable your phone's Bluetooth, search for "F9," and connect. The phone screen will display "Bluetooth Connected," and the earbud will prompt "Connected." Manual operation for a single earbud follows the same steps.
Remark: For single use, the main earbud (R) Bluetooth name is "F9," and the secondary earbud (L) Bluetooth name is "F9 L." For repeated use, ensure Bluetooth is on and earbuds are taken from the case; they will connect automatically. If using a different phone, follow the pairing instructions.
Special Note on Re-pairing: If earbuds are not paired correctly, power them off. Press and hold the buttons on both earbuds simultaneously for about 10 seconds until blue lights flash, then red and blue lights flash alternately. Release. The earbuds are now paired and ready for phone searching. Note: This action clears previous phone pairing records. Delete the Bluetooth pairing record on your phone and search for the connection again.
Care and Maintenance
- Place earbuds in the charging case before putting them in your pocket to avoid mis-operation.
- Do not use abrasive cleaners.
- Avoid exposing earbuds to excessive temperature, direct sunlight for extended periods, or open flames.
- Do not drop, bump, scratch, twist, tap, crush, or immerse in water.
- Keep away from magnets, appliances, and speakers when using.
- Operate within the ambient temperature range of -10°C to 55°C.
- Do not expose to moisture.
- If not in use for a long time, charge fully and then charge once a week to extend battery life.
Safety Guidance
- Use a standard 5V charger (4.9-5.5V).
- Do not place the charging case or earbuds near flammable or explosive materials.
- Do not disassemble the charging case or earbuds, or insert foreign objects to prevent damage or harm.
Serious Warning
Do not use the product while charging. Use only the manufacturer-specified adapter. Do not disassemble the built-in lithium battery. Prevent metal from contacting or shorting the electrodes. Avoid touching or squeezing the battery. Do not expose to humid or hot (>60°C) environments.
Commodity Warranty Card
Warranty Details:
- Warranty period is three months from the date of purchase. Free repair and parts replacement will be provided for confirmed faults under normal use.
- Warranty service will be refused under the following circumstances:
- Mishandling, negligence, natural disasters, or man-made disasters.
- Repairs or modifications by unauthorized personnel.
- Altered or removed product serial numbers.
- Failure to follow original factory installation instructions.
- Free service does not cover product accessories, decorations, or other items.
- The company is not liable for any direct or indirect loss or equipment damage.
- Warranty card contents are subject to change without prior notice.
Warranty Card Information:
- Product Name: F9 Bluetooth Earbuds
- Sales Date: [To be filled by seller]
- Shop: [To be filled by seller]
After Sale Service
Please fill in and keep the warranty certificate safely.
Packing Details
| Item Name | Quantity |
|---|---|
| Bluetooth earbuds | 2 pcs |
| Charger case | 1 pcs |
| User manual | 1 pcs |
| Certification | 1 pcs |
| Eartips | 1 pcs (3 sizes: Big, Medium, Small) |
| USB charger line | 1 pcs |
FAQ and Solutions
| Phenomenon | Failure Reason | Solution |
|---|---|---|
| Turn off automatically | Low battery | Charge the earbuds for 2-5H. |
| Cannot turn on / No hint after paired | Not paired correctly | Re-pair the earbuds. |
| Can talk but red light is on | Red light is on for lower battery | Charge for the earbuds. |
| No lights on when charging | No output from power supply | Check the power supply connection. |
| Echo | Too large volume or too noisy environment | Turn down the volume or change the environment. |
| There is noise when talking | Environmental disturbance or too far from device | Change the environment or move closer to the device. |
| Low voice | Not wearing earbuds correctly | Adjust the position of the earbuds. |
| Cannot hear the music | The phone doesn't support BT stereo | Need a phone that supports BT stereo. |