Isingeniso
Thank you for choosing the JUNJIEUNVO BT1638 Over-Ear Wireless Headphones. This manual provides detailed instructions for the proper use, setup, and maintenance of your headphones. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.

Image: The JUNJIEUNVO BT1638 Over-Ear Wireless Headphones in blue, showcasing their design and padded headband.
Okuqukethwe Kwephakheji
Sicela uhlole iphakheji ngezinto ezilandelayo:
- JUNJIEUNVO BT1638 Over-Ear Wireless Headphones
- Ikhebuli yokushaja ye-USB-C
- Ikhebula lomsindo le-3.5mm AUX
- Incwadi Yomsebenzisi (le dokhumenti)
Setha
1. Ukushaja ama-headphones
Ngaphambi kokusebenzisa okokuqala, shaja ama-headphone akho ngokugcwele. Ukushaja okugcwele kuthatha cishe amahora amabili.
- Xhuma ikhebula lokushaja le-USB-C embobeni yokushaja kuma-headphone.
- Xhuma olunye uhlangothi lwekhebula le-USB-C emthonjeni wamandla we-USB ohambisanayo (isb., imbobo ye-USB yekhompyutha, i-adaptha yodonga).
- The indicator light will show charging status (e.g., red for charging, blue/off for fully charged). Refer to the LED indicator section for details.
2. Ukuvula/Ukucisha
- Vula: Cindezela bese ubamba inkinobho ethi Power cishe imizuzwana emibili kuze kube yilapho ukukhanya kwesikhombisi kukhanya.
- Cisha ugesi: Cindezela futhi ubambe inkinobho yamandla cishe imizuzwana emi-3 kuze kucishwe ukukhanya kwenkomba.
3. Ukubhanqa kwe-Bluetooth
The headphones use Bluetooth 5.0 for wireless connectivity, offering a range of up to 33 feet (10 meters).
- Qinisekisa ukuthi ama-headphone acishiwe.
- Press and hold the Power button for about 5-7 seconds until the indicator light flashes red and blue alternately, indicating pairing mode.
- Edivayisini yakho (i-smartphone, ithebhulethi, ikhompuyutha ephathekayo), vula i-Bluetooth bese usesha amadivaysi atholakalayo.
- Select "BT1638" or "JUNJIEUNVO BT1638" from the list of found devices.
- Once connected, the indicator light will typically flash blue slowly or remain solid blue.
- Uma ucelwa iphasiwedi, faka "0000".

Image: The BT1638 headphones shown with a variety of compatible devices including laptops, smartphones, and tablets, illustrating broad connectivity.
Imiyalelo yokusebenza
1. Izilawuli Eziyisisekelo
The headphones feature button and touch controls for various functions.
- Inkinobho yamandla: Vula/vala, faka imodi yokubhangqa.
- IVolumu Ephezulu / Ithrekhi Elandelayo: Cindezela isikhashana ukuze unyuse ivolumu, cindezela isikhathi eside ukuze uthole ithrekhi elandelayo.
- IVolumu Phansi / Ithrekhi Yangaphambilini: Cindezela kafushane ukuze wehlise ivolumu, cindezela isikhathi eside ukuze uthole ithrekhi yangaphambilini.
- Multi-function Button (MFB) / Touch Control:
- Dlala/Misa kancane: Ukucindezela okukodwa.
- Phendula/Phendula ikholi: Single press during an incoming call.
- Yenqaba Ucingo: Press and hold for 2 seconds during an incoming call.
- Yenza kusebenze umsizi wezwi: Cindezela kabili.
2. Ukudlala Ngomsindo
Enjoy high-fidelity (HIFI) sound quality and immersive surround sound with your BT1638 headphones.

Image: The BT1638 headphones, emphasizing their HIFI sound quality and extended battery life of up to 40 hours.

Image: The BT1638 headphones displaying Hi-Res Wireless Audio and LDAC compatibility, indicating advanced audio capabilities.
3. Ukukhansela Umsindo Ongasebenzi
The over-ear design and cushioned ear cups provide passive noise cancellation, reducing ambient sounds for a more focused listening experience.

Image: A visual representation comparing sound waveforms before and after noise reduction, demonstrating the effectiveness of the headphones' passive noise cancellation.
4. Wired Connection (AUX)
For situations where Bluetooth is not available or preferred, you can connect the headphones using an AUX cable.
- Plug one end of the 3.5mm AUX cable into the headphone's AUX port.
- Plug the other end into your audio source's 3.5mm audio jack.
- Ama-headphone azoshintshela kumodi enentambo ngokuzenzakalela.
5. Induduzo Nokufaneleka
The BT1638 headphones feature an adjustable headband and rotatable earcups for a comfortable and secure fit.

Isithombe: Eduze view illustrating the adjustable telescopic headband and earcups that can rotate 90 degrees, allowing for a customized and comfortable fit.

Image: The soft earmuffs of the BT1638 headphones, designed for comfortable and smooth listening experiences.
Isondlo
Proper care will extend the life and performance of your headphones.
- Ukuhlanza: Use a soft, dry, lint-free cloth to clean the surfaces of the headphones. Do not use harsh chemicals, cleaning solvents, or strong detergents.
- Amakhushini Endlebe: The memory foam and fabric ear cushions can be gently wiped with a slightly damp cloth if necessary, then allowed to air dry completely.
- Isitoreji: Uma ingasetshenziswa, gcina ama-headphones endaweni epholile, eyomile, kude nelanga eliqondile namazinga okushisa aphezulu.
- Gwema Umswakama: Lawa ma-headphone awakwazi ukumelana namanzi. Gwema ukuchayeka emanzini, emvuleni, noma emswakama owedlulele.
- Phatha Ngokunakekela: Gwema ukuwisa ama-headphone noma ukuwafaka emsindweni onamandla.
Ukuxazulula inkinga
| Inkinga | Imbangela Engenzeka | Isixazululo |
|---|---|---|
| Ama-headphone awavuli amandla. | Ibhethri eliphansi. | Charge the headphones for at least 30 minutes. |
| Ayikwazi ukubhanqa nedivayisi. | Ama-headphone awekho kwimodi yokumatanisa; I-Bluetooth ivaliwe kudivayisi; idivayisi ikude kakhulu. | Ensure headphones are in pairing mode (flashing red/blue). Turn on Bluetooth on your device. Move device closer to headphones (within 33 feet). |
| Awukho umsindo noma ivolumu ephansi. | Ivolumu iphansi kakhulu; umthombo womsindo ongalungile; ama-headphone awaxhunyiwe. | Increase volume on both headphones and connected device. Ensure headphones are properly paired or AUX cable is fully inserted. |
| Ukuxhumana okungapheli. | Ukugxambukela; idivayisi ikude kakhulu; ibhethri eliphansi. | Move closer to the connected device. Avoid strong electromagnetic interference. Ensure headphones are sufficiently charged. |
Imininingwane
| Isici | Imininingwane |
|---|---|
| Igama Lemodeli | I-SY-BT1638 |
| Ubuchwepheshe bokuxhumana | I-Bluetooth, AUX |
| I-Wireless Communication Technology | I-Bluetooth, engenantambo |
| Inguqulo ye-Bluetooth | 5.0 |
| I-Bluetooth Range | Amafidi angama-33 (10 amamitha) |
| Uhlobo Lomshayeli Womsindo | I-Dynamic Driver |
| Usayizi Womshayeli Womsindo | 40 amamilimitha |
| Impendulo Yemvamisa | 20 Hz (isibopho esiphansi) |
| Ukuzwela | 102db |
| Impedance | 32 ohm |
| Ukulawula Umsindo | Ukukhanselwa Komsindo Omnyama |
| Uhlobo Lokulawula | Okungenantambo |
| Indlela Yokulawula | Thinta, Inkinobho |
| Isikhathi sokushaja | Amahora angu-2 |
| Impilo Yebhethri | Kufika emahoreni angu-40 (ukudlala kabusha) |
| Okubalulekile | Fabric, Memory Foam, Metal |
| Isisindo sento | 12 Ama-ounces (cishe 340g) |
| Izinga Lokumelana Namanzi | Ayizweli Amanzi |
| Amadivayisi Ahambisanayo | Laptops, Smartphones, Tablets |
Ulwazi Lwewaranti
Specific warranty details for the JUNJIEUNVO BT1638 headphones are typically provided with your purchase documentation or on the manufacturer's official webindawo. Sicela ugcine ubufakazi bakho bokuthenga banoma yiziphi izimangalo zewaranti.
Generally, products are covered against defects in materials and workmanship for a specified period from the date of purchase. This warranty usually does not cover damage caused by misuse, accidents, unauthorized modifications, or normal wear and tear.
Ukwesekwa Kwamakhasimende
If you encounter any issues or have questions not covered in this manual, please contact JUNJIEUNVO customer support. You can typically find contact information on the product packaging, the official JUNJIEUNVO webisayithi, noma ngomthengisi wakho.
When contacting support, please have your product model (SY-BT1638) and proof of purchase readily available.