1. Okwu mmalite
Thank you for choosing the EarFun K4 Kids Bluetooth Headphones. This manual provides essential information for setting up, operating, and maintaining your headphones. Please read it thoroughly to ensure proper use and to maximize your listening experience.
Image: The EarFun K4 Kids Bluetooth Headphones in blue, showcasing their over-ear design and LED light feature.
2. Ihe ngwugwu
Gbaa mbọ hụ na ihe niile dị na ngwugwu gị:
- EarFun K4 ụmụaka ekweisi Bluetooth
- Akwụkwọ ntuziaka onye ọrụ
- USB-C eriri USB
- 3.5mm Audio USB
3. Akụrụngwa Ngwaahịa
- Volume Limited Technology: Offers 74/85/94dBA volume limits to protect children's hearing.
- Ọkụ LED mara mma: Features 5 distinct lighting modes for a visually engaging experience.
- Ụda Stereo Kwesịrị Ntụkwasị Obi: Equipped with 40mm drivers for clear and rich audio.
- Igwe okwu arụnyere n'ime ya: Enables clear hands-free calls.
- Ogologo oge egwuregwu: Up to 90 hours of battery life (lights off) and fast USB-C charging.
- Bluetooth Bluetooth: Provides stable and wide compatibility with various devices.
- Nhazi dị mma: Adjustable headband, foldable structure, and soft memory foam earcups.
- Ngwa ndị echekwara Constructed with BPA-free materials, certified by RoHS 2.0 and CPC standards.
Image: A visual summary of the EarFun K4 headphones' key features, including volume limits, LED lights, sound quality, microphone, battery life, Bluetooth version, and foldable design.
4. Ntọala na Njikọ
4.1 Ịchaji ekweisi
- Jikọọ eriri USB-C na-enye chaja na ọdụ ụgbọ mmiri dị na ekweisi.
- Jikọọ nsọtụ nke ọzọ nke eriri na ihe nkwụnye ọkụ USB (anaghị etinye ya) ma ọ bụ ọdụ ụgbọ USB nke kọmputa.
- The LED indicator will show charging status. A full charge provides up to 90 hours of playtime with lights off, or approximately 24 hours with lights on. A 10-minute charge provides about 8 hours of playtime.
Image: Illustration of the EarFun K4 headphones' battery life, highlighting 90 hours of wireless use (with lights off) and unlimited playtime in wired mode.
4.2 Gbanyụọ/ gbanyụọ
- Ike Na: Press and hold the Power button for 2 seconds until the LED indicator lights up.
- Gbanyụọ: Pịa ma jide bọtịnụ ike maka sekọnd 3 ruo mgbe ihe ngosi LED gbanyụrụ.
4.3 Njikọ Bluetooth
- Gbaa mbọ hụ na agbanyụrụ ekweisi.
- Press and hold the Power button for 5 seconds until the LED indicator flashes blue and red alternately, indicating pairing mode.
- On your device (smartphone, tablet, laptop, etc.), enable Bluetooth and search for available devices.
- Select "EarFun K4" from the list of devices.
- Ozugbo ejikọrọ, ihe ngosi LED ga -eji nwayọ na -acha anụnụ anụnụ.
Image: The EarFun K4 headphones demonstrating universal compatibility with smartphones, tablets, laptops, PCs, gaming consoles, and other devices, powered by Bluetooth 5.4 technology.
4.4 Ụdị Waya
To use the headphones in wired mode, connect the provided 3.5mm audio cable to the headphone's audio jack and the other end to your device's audio output. This mode does not require battery power.
5. Ntuziaka ọrụ
5.1 Njikwa olu
The EarFun K4 headphones feature three volume limit settings to protect hearing:
- Ụdị nkịtị: 74dBA
- Study Mode: 85dBA
- Njem Njem: 94dBA
To switch between volume limit modes, simultaneously press the "+" and "-" buttons once after pairing.
Image: Three children demonstrating the use of EarFun K4 headphones in different environments, illustrating the 74dBA (Normal), 85dBA (Study), and 94dBA (Travel) volume limit settings designed for hearing protection.
Image: A diagram illustrating the simultaneous press of the '+' and '-' buttons on the EarFun K4 headphones to cycle through the different volume limit modes.
Ụdị ọkụ ọkụ 5.2 LED
The headphones feature 5 colorful LED lighting modes. Use the dedicated LED light button to cycle through the modes:
- Static Color 1
- Static Color 2
- Static Color 3
- Gradient Light
- Flash ngwa ngwa
Foto: nkọwa zuru ezu view of the EarFun K4 headphone's ear cup, highlighting the LED light panel and listing the five available lighting modes.
5.3 Music Playback and Calls
The control buttons on the ear cup allow for easy management of audio and calls:
- Gwuo/kwụsịtụ: Pịa obere bọtịnụ ọrụ dị iche iche.
- Track na-esote: Long press the "+" button for 2 seconds.
- Gara aga Track: Long press the "-" button for 2 seconds.
- Azịza/Kwụsị Oku: Pịa obere bọtịnụ ọrụ dị iche iche.
- Jụ oku: Long press the Multi-function button for 2 seconds.
Image: A child wearing EarFun K4 headphones, with an accompanying diagram detailing the location and function of the control buttons for LED lights and audio playback/calls.
6. Nlekọta
6.1 Nhicha
- Jiri akwa dị nro hichaa ekweisi.
- Ejila ihe nchacha abrasive ma ọ bụ ihe mgbaze.
- Zere ịbanye mmiri n'ime oghere ọ bụla.
6.2 Nchekwa
- Chekwaa ekweisi n'ebe dị jụụ, kpọrọ nkụ na-adịghị na ìhè anyanwụ kpọmkwem na oke okpomọkụ.
- Nhazi a na-apịachi apịachi na-enye ohere maka nchekwa dị obere.
Image: A child wearing the EarFun K4 headphones, with callouts emphasizing the adjustable headband, foldable structure, soft memory foam earcups, and durable materials for all-day comfort.
Image: The EarFun K4 headphones in their folded state, placed next to a backpack and books, demonstrating their compact and portable design suitable for travel and storage.
7. Nchọpụta nsogbu
- Ekweisi anaghị agba ọkụ: Gbaa mbọ hụ na chajịrị ekweisi nke ọma.
- Enweghị ike ijikọ na ngwaọrụ: Make sure the headphones are in pairing mode (LED flashing blue/red). Turn off and on your device's Bluetooth, then try pairing again.
- Enweghị ụda: Check the volume level on both the headphones and your connected device. Ensure the headphones are properly connected via Bluetooth or the 3.5mm audio cable.
- Ọkụ LED anaghị arụ ọrụ: Check if the LED light function is enabled and cycle through the modes using the dedicated button.
- Ogo ụda adịghị mma: Ensure the headphones are within the Bluetooth range (up to 20 meters). Try disconnecting and reconnecting.
8. Nkọwapụta
| Aha Nlereanya | EarFun K4 |
| Teknụzụ Njikọta | Wireless (Bluetooth 5.4), Wired (3.5mm Jack) |
| Nha ọkwọ ụgbọ ala ọdịyo | 40 mm |
| Oke Oke | 74/85/94 dBA |
| Ndụ batrị | Ruo awa iri asaa (ọkụ gbanyụrụ) |
| Oge Nchaji | Nkeji 10 maka awa 8 oge egwuregwu |
| Atụmatụ pụrụ iche | LED Lights, Built-in Microphone, Fast Charging, Foldable Design |
| Ihe onwunwe | Leather, Plastic (BPA-free) |
| Ibu Ibu | 7.5 ounce (213 grams) |
| Akụkụ ngwaahịa | 6.5 x 3.54 x 7.48 sentimita asatọ |
9. Safety and Certifications
The EarFun K4 headphones are designed with child safety in mind:
- Nchedo Ntị: Volume limited to 74/85/94dBA to prevent hearing damage.
- Ngwa ndị echekwara Made with BPA-free materials and certified by RoHS 2.0 and CPC standards.
Image: The EarFun K4 headphones prominently displaying their RoHS, CPC (Children's Product Certificate), and BPA Free certifications, emphasizing their construction from safe, child-friendly materials.
Image: A graph illustrating safe listening levels and zones, accompanied by World Health Organization (WHO) recommendations for protecting children's hearing from prolonged exposure to high decibel levels.
10. Akwụkwọ ikike na nkwado
EarFun provides an 18-month hassle-free protection for the K4 Kids Bluetooth Headphones. For any product inquiries, technical support, or warranty claims, please contact EarFun customer service through their official websaịtị ma ọ bụ onye na-ere ahịa ebe a zụrụ ngwaahịa ahụ.
