1. ບົດແນະນຳ
Thank you for choosing the Koss UR40 Collapsible Over-Ear Headphones. These headphones are designed for comfortable listening with a lightweight, retro-style design. This manual provides essential information for the proper use and care of your headphones.

2. ຜະລິດຕະພັນເກີນview
The Koss UR40 headphones feature a lightweight, collapsible design for portability and comfort. Key features include:
- ການຕອບສະໜອງຄວາມຖີ່: 10-20,000 Hz for a wide audio range.
- impedance: 60 ໂອ້ຍ
- Diaphragms: Titanium-coated, high-polymer diaphragms for accurate sound reproduction.
- ການສະກົດຈິດ: Neodymium iron boron rare-earth-magnet structures for enhanced sound.
- Voice Coils: Oxygen-free-copper voice coils for high signal clarity.
- ເບາະຫູ: Closed leatherette ear cushions provide maximum isolation and deep bass.
- ສາຍພັນຫົວ: Airy mesh sling for soft, breathable support.
- ການອອກແບບ: Lightweight frame (approximately 0.19 kg) folds into a compact configuration for easy portability.

3. ຕັ້ງຄ່າ
To begin using your Koss UR40 headphones, follow these steps:
- ເປີດຫູຟັງ: Gently unfold the headphones from their compact position until the earcups are ready to be placed over your ears.
- ເຊື່ອມຕໍ່ກັບແຫຼ່ງສຽງ: Insert the 3.5 mm (1/8-inch) audio plug into the headphone jack of your audio device (e.g., smartphone, computer, MP3 player).
- Use 6.3 mm Adapter (if needed): If your audio device requires a larger connection, attach the included 6.3 mm adapter to the 3.5 mm plug before inserting it into the device.

This video demonstrates the features of the Koss UR40 headphones, including the 3.5mm plug and 6.3mm adapter, open-back design, isolating ear cushions, and collapsible structure for portability.
4. ຄໍາແນະນໍາການດໍາເນີນງານ
ເມື່ອເຊື່ອມຕໍ່ແລ້ວ, ທ່ານສາມາດເລີ່ມໃຊ້ຫູຟັງຂອງທ່ານໄດ້:
- ການໃສ່ຫູຟັງ: Place the earcups over your ears, ensuring a comfortable fit. The adjustable headband and airy mesh sling are designed for extended wear.
- ປັບລະດັບສຽງ: Control the audio volume directly from your connected audio device.
- ພັບສໍາລັບການເກັບຮັກສາ: When not in use, fold the headphones into their compact form for easy storage and transport. This protects the headphones and saves space.

5. ບໍາລຸງຮັກສາ
Proper maintenance ensures the longevity and performance of your headphones:
- ທໍາຄວາມສະອາດຫູ: Wipe the leatherette ear cushions with a soft, damp ຜ້າ. ຫຼີກເວັ້ນການສານເຄມີທີ່ຮຸນແຮງຫຼືວັດສະດຸຂັດ.
- ການດູແລສາຍໄຟ: Avoid sharp bends or excessive pulling on the audio cable. Store the cable neatly to prevent tangling and damage.
- ການເກັບຮັກສາ: Store the headphones in a clean, dry place, preferably in their folded configuration, to protect them from dust and physical damage.
6. ການແກ້ໄຂບັນຫາ
If you encounter issues with your Koss UR40 headphones, refer to the following common solutions:
| ບັນຫາ | ສາເຫດທີ່ເປັນໄປໄດ້ | ການແກ້ໄຂ |
|---|---|---|
| ບໍ່ມີສຽງ | Loose connection, incorrect volume setting, faulty audio source. | Ensure the audio plug is fully inserted. Check the volume on your device. Test with another audio device. |
| ສຽງບິດເບືອນ | Volume too high, damaged cable, audio source issue. | Lower the volume. Inspect the cable for damage. Test with another audio device. |
| ເຫມາະທີ່ບໍ່ສະບາຍ | ການປັບຕົວທີ່ບໍ່ຖືກຕ້ອງ. | Adjust the headband for a comfortable fit over your ears. The airy mesh sling should rest gently on your head. |
7. ຂໍ້ມູນຈໍາເພາະ
| ຄຸນສົມບັດ | ລາຍລະອຽດ |
|---|---|
| ຍີ່ຫໍ້ | ໂກສ |
| ຊື່ຕົວແບບ | UR40 |
| ໝາຍເລກຕົວແບບ | 155524 |
| ການຈັດວາງຫູ | ເກີນຫູ |
| impedance | 60 ໂອມ |
| ຊ່ວງຄວາມຖີ່ | 10 Hz - 20 kHz |
| ຄຸນສົມບັດເພີ່ມເຕີມ | ພັບໄດ້, ນ້ຳໜັກເບົາ |
| ເຕັກໂນໂລຊີການເຊື່ອມຕໍ່ | ມີສາຍ |
| Jack ຫູຟັງ | Jack ຂະ ໜາດ 3.5 ມມ |
| ນ້ໍາຫນັກລາຍການ | 0.19 ກິໂລກຣາມ |
| ວັດສະດຸຫຸ້ມຫໍ່ | ທາດເຫຼັກ |
| ລວມອຸປະກອນເສີມ | ອະແດັບເຕີ 6.3 ມມ |
8. ການຮັບປະກັນແລະການສະຫນັບສະຫນູນ
The Koss UR40 Collapsible Over-Ear Headphones are covered by a ຮັບປະກັນຕະຫຼອດຊີວິດ on parts and labor, provided by Koss. For warranty claims or technical support, please refer to the official Koss webເວັບໄຊ ຫຼືຕິດຕໍ່ບໍລິການລູກຄ້າຂອງເຂົາເຈົ້າໂດຍກົງ.
Manufacturer: Koss
ສໍາລັບຂໍ້ມູນເພີ່ມເຕີມ, ໄປຢ້ຽມຢາມ Koss Store on Amazon.