FenMI F88 Tws Headphone User Manual
- September 20, 2024
- FenMI
Table of Contents
User’s Manual
F88 Tws Headphone
Please read this instruction carefully before using the product and keep it in a safe place
Product parameters
Name: Tws headphone
Model: F88
Material: ABS+PC
Bluetooth version: V5.3
Receiving distance: 15m (standard environment)
Standby time: 120-130 hours
With the charging box listening time: 15-20 hours
Product size: 95x55x30mm
Battery capacity: 35 mAh (headphones) 300mAh (charging compartment)
Headphone rated working current: 9mA
Charging bin charging current: 5V 0.26A
Charging time: 45 minutes for earphones, 60 minutes for charging case
Transmission frequency: 2.4GHz(2.4GHz~2.483GHz)
Supported protocols: HSP/HFP/A2DP (SBC, AAC/ AVRCP)
Charging interface: Type-C
Working/Storage Temperature: 50°C
Applicable: Playback device with Bluetooth function
Packing list
Instructions for use
- Power on: take out the automatic power-on pairing from the charging bin
- Shutdown: The earphones are automatically turned off when placed back in the compartment.
- Automatic pairing mode: enter the automatic pairing mode after successful startup
- The main and auxiliary ears are matched successfully. The red and blue lights of the main ear flash and the auxiliary ear lights go out.
- The mobile phone is connected successfully: there is no indicator light on the main and auxiliary computers
- Play and pause music: Click
- Previous/next song: Press twice quickly
- Answer the incoming call: briefly press any headset in the incoming state
- Hang up the phone: briefly press any headset in the call state
- Reject: Double-click twice in incoming status
- Press the volume up and down three times
- Call Siri: press and hold for two seconds
- Bluetooth disconnection: the mobile phone actively disconnects Bluetooth
- Low power prompt tone: low power prompt will be given after the battery voltage is lower than 3.4V (once every 60 seconds), and will automatically shut down if the battery voltage is lower than 3.2V
- Default music mode four clicks to switch game mode.
- After pairing the headphones, press twice to switch between the English prompt tone and the default Chinese prompt tone.
Charging instructions
Operation tips: 1. Turn off the Bluetooth of the mobile phone, and the earphones will automatically shut down after 5 minutes, reducing the continuous power supply to the earphones by the charging compartment, causing the earphones to be overcharged and discharging trickle current, which can prolong the standby time of the charging compartment and provide better protection. Extended battery life.
Product operation method
First use step 1-earphone charging
Put the earphones back into the charging case, and make sure that the
earphones and the charging case are fully charged for use;
Step 2-Bluetooth connection Turn on the Bluetooth function of the mobile phone
Select the device model: F88 click to connect, some mobile phones may make a
call without sound, you need to turn on the call function in the Bluetooth
settings (as shown above)
Precautions for use
- The earphones should be stored in a dry and ventilated environment, avoid contact with oil, water vapor, steam, humidity and dust, so as not to affect product performance.
- Avoid using abrasive, harsh organic solvents or items containing these ingredients to clean the earphones.
- The headset needs to be used according to the correct specifications. Pay attention to the impact of the use environment on the headset. To ensure a smooth connection, it is recommended that the distance between the phone and the headset be within 10 meters.
- Do not disassemble the headset body and accessories privately, otherwise the warranty will not be provided. Or do not insert other objects into the product to avoid damage to the product or even your injury.
- To charge the headset, please use a charger with a standard output voltage of 4.5V to 5.5V, or a charger that meets our company’s requirements. (Please use the charging cable that comes with the product, avoid using a high-output charging cable with a charging head, which will easily lead to overheating and charging damage)
- To ensure that you use the headset normally, please ensure that the headset has sufficient power.
- It is strictly forbidden to expose the Bluetooth headset and charging box to excessively high temperature places, sun exposure, near fire, humidity or extreme temperature (working environment working temperature range 50°C).
- Do not use this product while charging, do not disassemble the built-in lithium electronic battery to prevent fire, do not allow metal products to touch or short-circuit the electrodes, do not hit or squeeze the battery, and avoid placing it in moisture, corrosion or overheating (>60 °C) in the environment.
Frequently Asked Questions
-
When one of the earphones can be connected, the other earphone still has no sound
Answer: Deleting the Bluetooth connection record of the mobile phone is to cancel the pairing. Put the earphones back into the charging compartment, reopen the cover, do not take out the earphones before the matching is successful, and search again with the mobile phone. Some mobile phones may be delayed, and two Bluetooth names may be found. Do not connect at this time, and refresh Once there is only one Bluetooth name, then click
connect. After turning on the Bluetooth, it is normal, and it will automatically connect to 2 headphones. -
After connecting to Bluetooth, one of the earphones has no sound, but the other earphone can be used normally
Answer: It is possible that the earphone with no sound is forced to shut down. At this time, we can press and hold the tail groove of the earphone without sound for 3-5 seconds, and try 2 more times until there is a “dong” sound
in the earphone. can be used normally -
Put the earphones into the charging compartment and cover the lid, the Bluetooth will not be disconnected, but still connected
Answer: The power of the charging bin is not enough. This phenomenon will occur when the power of the charging bin is low between 3.2v and 3.3v, The solution is to charge the charging bin
Warning
Please follow the safety instructions, otherwise it may cause fire,
electric shock, damage or other I njuries
Warranty card
Warranty
- To purchase this product, please fill in this card carefully and read the following warranty terms carefully to ensure that the product is effectively guaranteed.
- The user takes good care of this card when purchasing the product, and asks the seller to stamp it for confirmation.
- This warranty card must be provided at the same time as the warranty.
- The information filled in this warranty card is true, otherwise it will be invalid.
- The product warranty period is one year. If the product fails during the
warranty period, it is due to poor quality of the original
device or a manufacturing problem. The company provides free maintenance and parts replacement.
- If the product is damaged and cannot be used normally due to the following reasons, it is not covered by the warranty.
- Damage caused by use and installation not in accordance with the instructions.
- All product damage caused by human or accident.
- Repairs, modifications or product seals that are not approved by our company are broken.
- Aging, bumps and scratches on the surface of the product.
- After the warranty period expires, the user can still get the maintenance service provided by the company, but the corresponding fee must be paid.
User information
Product number —————-
Product number —————-
Purchase date —————-
Customer name —————-
Warranty record
Warranty date
Failure and treatment method
Completion Date
Customer signature
Warning
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions:
(1) this device may not causeharmful interference, and
(2) this device must accept any interference received, including interference
that may cause undesired operation. Changes or modifications not expressly
approved by the party responsible for compliance could void the user’s
authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation, This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with
theinstructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to
radio or television reception which can be determined by turning the equipment
off and on, the user is encouraged to try to correct the interference by one
or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help
NOTE: This device and its antenna(s) must not be co-located or operation
in conjunction with any other antenna or transmitter
The device has been evaluated to meet general RF exposure requirement. The
device can be used in portable exposure condition without restriction.
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