1. ບົດແນະນຳ
This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your truefree F2 Open Ear Air Conduction Wireless Headphones. Please read this manual thoroughly before using the product to ensure proper function and longevity.

Image: The truefree F2 Open Ear Air Conduction Wireless Headphones, showcasing their ergonomic design and black and orange color scheme.
2. ເນື້ອໃນຊຸດ
ກວດສອບວ່າລາຍການທັງຫມົດແມ່ນມີຢູ່ໃນຊຸດຜະລິດຕະພັນຂອງທ່ານ:
- truefree F2 Open Ear Air Conduction Wireless Headphones
- ສາຍສາກ USB
- ຄູ່ມືຜູ້ໃຊ້ (ເອກະສານນີ້)

Image: The truefree F2 headphones, charging cable, and user manual displayed alongside the product packaging.
3. ຕັ້ງຄ່າ
3.1 ການສາກຫູຟັງ
Before first use, fully charge your truefree F2 headphones.
- ເຊື່ອມຕໍ່ສາຍສາກໄຟ USB ທີ່ໃຫ້ມາເຂົ້າກັບພອດສາກໄຟໃນຫູຟັງ.
- ເຊື່ອມຕໍ່ອີກສົ້ນຂອງສາຍ USB ກັບແຫຼ່ງພະລັງງານ USB ທີ່ເຂົ້າກັນໄດ້ (ເຊັ່ນ: ພອດ USB ຂອງຄອມພິວເຕີ, ຕົວແປງໄຟ).
- The indicator light will show charging status. Once fully charged, the light will change (refer to LED indicator section for details).
A full charge provides approximately 15 hours of continuous listening time.

Image: An illustration showing the truefree F2 headphones with a 15-hour battery life indicator and a charging icon, suggesting long endurance.
3.2 ການເປີດ/ປິດ
- ເປີດ: ກົດປຸ່ມເປີດປິດຄ້າງໄວ້ປະມານ 3 ວິນາທີ ຈົນກວ່າໄຟ LED ຈະກະພິບ.
- ປິດພະລັງງານ: ກົດປຸ່ມເປີດປິດຄ້າງໄວ້ປະມານ 3 ວິນາທີຈົນກວ່າຕົວຊີ້ LED ຈະປິດ.
3.3 ການຈັບຄູ່ Bluetooth
The truefree F2 headphones utilize Bluetooth 5.3 for a stable wireless connection.
- ກວດໃຫ້ແນ່ໃຈວ່າປິດຫູຟັງແລ້ວ.
- ກົດປຸ່ມເປີດປິດຄ້າງໄວ້ 5-7 ວິນາທີ ຈົນກວ່າໄຟ LED ຈະກະພິບສີແດງ ແລະສີຟ້າສະລັບກັນ, ສະແດງເຖິງໂໝດການຈັບຄູ່.
- ໃນອຸປະກອນຂອງທ່ານ (ໂທລະສັບສະຫຼາດ, ແທັບເລັດ, ແລະອື່ນໆ), ເປີດໃຊ້ Bluetooth ແລະຊອກຫາອຸປະກອນໃຫມ່.
- Select "truefree F2" from the list of available devices.
- ເມື່ອເຊື່ອມຕໍ່ແລ້ວ, ຕົວຊີ້ວັດ LED ຈະກະພິບເປັນສີຟ້າຊ້າ slowly.

Image: A close-up diagram of a Bluetooth 5.3 chip, highlighting the advanced connectivity technology used in the truefree F2 headphones.
3.4 Truefree App Control
Enhance your experience by downloading the official Truefree App. The app allows for customized settings, including:
- Activating/deactivating multipoint connection
- Preset EQ adjustments
- Music and call control customization
- ອັບເດດເຟີມແວ
- ຕົວຊີ້ວັດລະດັບຫມໍ້ໄຟ

Image: A visual representation of the Truefree App interface on a smartphone, showing various customization options like EQ settings, battery indicator, and mode switches.
4. ຄໍາແນະນໍາການດໍາເນີນງານ
4.1 ການໃສ່ຫູຟັງ
The truefree F2 headphones feature an open-ear design with an over-ear hook and neckband for a secure and comfortable fit. Position the speakers just outside your ear canals. This design allows you to remain aware of your surroundings while listening to audio.

Image: A person wearing the truefree F2 headphones, demonstrating the open-ear comfort and secure fit during use.
4.2 ການຄວບຄຸມປຸ່ມ
The headphones are equipped with intuitive button controls for various functions.
| ຟັງຊັນ | ການປະຕິບັດ |
|---|---|
| ຫຼິ້ນ / ຢຸດດົນຕີ | ກົດປຸ່ມເປີດປິດຄັ້ງດຽວ. |
| ປະລິມານ + | ກົດປຸ່ມປະລິມານ +. |
| ປະລິມານ - | ກົດປຸ່ມ Volume. |
| ເພງກ່ອນໜ້າ | ກົດປຸ່ມລະດັບສຽງ - ຄ້າງໄວ້ 1.5 ວິນາທີ. |
| ຕິດຕາມຕໍ່ໄປ | ກົດປຸ່ມ Volume + ຄ້າງໄວ້ 1.5 ວິນາທີ. |
| ຮັບສາຍ / ວາງສາຍ | ກົດປຸ່ມເປີດປິດສັ້ນ. |
| ປະຕິເສດການໂທ | ກົດປຸ່ມເປີດປິດຄ້າງໄວ້ 1.5 ວິນາທີ. |
| ສະຫຼັບລະຫວ່າງສອງການໂທ | ກົດປຸ່ມເປີດປິດສອງເທື່ອ. |
| ເປີດໃຊ້ຜູ້ຊ່ວຍສຽງ | ກົດປຸ່ມເປີດປິດສອງເທື່ອ. |
| ໂໝດເກມເປີດ/ປິດ | ກົດປຸ່ມເປີດປິດສາມເທື່ອ. |

Image: A detailed diagram illustrating the location and functions of the control buttons on the truefree F2 headphones for music, calls, voice assistant, and game mode.
4.3 ການເຊື່ອມຕໍ່ຫຼາຍຈຸດ
The truefree F2 supports dual connection, allowing you to connect to two devices simultaneously. This enables seamless switching between audio sources without re-pairing.
- Ensure the headphones are paired with the first device.
- Disconnect Bluetooth on the first device. The headphones will re-enter pairing mode.
- ຈັບຄູ່ຫູຟັງກັບອຸປະກອນທີສອງ.
- ເຊື່ອມຕໍ່ Bluetooth ຄືນໃໝ່ໃນອຸປະກອນທຳອິດ. ຕອນນີ້ຫູຟັງຄວນເຊື່ອມຕໍ່ກັບທັງສອງອຸປະກອນແລ້ວ.
- Manage multipoint connection settings via the Truefree App.

Image: The truefree F2 headphones positioned between a smartphone and a tablet, illustrating the multipoint connection feature for simultaneous device pairing.
4.4 ໂໝດເກມ
Activate Game Mode for a low-latency audio experience (43ms), ideal for gaming or video playback to ensure audio-visual synchronization.
- ເປີດໃຊ້: Triple-press the Power button.
- ປິດໃຊ້ງານ: Triple-press the Power button again.

Image: A smartphone displaying a game with the truefree F2 headphones, highlighting the 43ms low latency feature for an uninterrupted gaming experience.
4.5 ຄຸນສົມບັດສຽງ
- 16.2mm Bio-Compound Diaphragm Drivers: Deliver rich sound details and an open soundstage.
- ການສົ່ງສຽງທິດທາງ: Minimizes sound leakage, providing a focused audio experience while maintaining environmental awareness.
- ໄມໂຄຣໂຟນຄູ່: Enhance call clarity by accurately capturing your voice and reducing ambient noise.

Image: A cutaway diagram of the truefree F2 headphone speaker, emphasizing the 16.2mm bio-compound diaphragm drivers responsible for immersive sound.

ຮູບພາບ: ພາຍໃນ view of the truefree F2 headphones highlighting the placement of the dual microphones for clear call quality.
5. ບໍາລຸງຮັກສາ
5.1 ການທໍາຄວາມສະອາດ
ການທໍາຄວາມສະອາດເປັນປົກກະຕິຊ່ວຍຮັກສາປະສິດທິພາບແລະຮູບລັກສະນະຂອງຫູຟັງຂອງທ່ານ.
- ເຊັດຫູຟັງດ້ວຍຜ້າອ່ອນໆ, ແຫ້ງ, ບໍ່ມີເສັ້ນດ່າງ.
- ສໍາລັບຝຸ່ນ stubborn, ເລັກນ້ອຍ dampen ຜ້າທີ່ມີນ້ໍາ. ຫຼີກເວັ້ນຄວາມຊຸ່ມຊື່ນຫຼາຍເກີນໄປ.
- ຢ່າໃຊ້ເຄື່ອງເຮັດຄວາມສະອາດຂັດ, ສານລະລາຍ, ຫຼືສານເຄມີທີ່ເຂັ້ມແຂງ.
5.2 ການຕໍ່ຕ້ານນ້ໍາ
The truefree F2 headphones are rated IPX4 water resistant, meaning they are resistant to water splashes from any direction. They are suitable for workouts and light rain exposure.
- ຢ່າຈົມຫູຟັງຢູ່ໃນນ້ໍາ.
- ຫຼີກລ່ຽງການໃຫ້ພວກມັນສຳຜັດກັບນ້ຳທີ່ມີຄວາມດັນ ຫຼື ນ້ຳທີ່ມີຄວາມໄວສູງ ເຊັ່ນ: ການອາບນ້ຳ ຫຼື ລອຍນ້ຳ.
- ໃຫ້ແນ່ໃຈວ່າຝາປິດຊ່ອງສຽບສາກໄຟໄດ້ປິດຢ່າງປອດໄພເພື່ອປ້ອງກັນນໍ້າເຂົ້າ.
5.3 ການເກັບຮັກສາ
Store your headphones in a cool, dry place away from direct sunlight and extreme temperatures.
6. ການແກ້ໄຂບັນຫາ
If you encounter issues with your truefree F2 headphones, refer to the following common solutions:
- ບໍ່ມີພະລັງງານ: ກວດໃຫ້ແນ່ໃຈວ່າຫູຟັງຖືກສາກເຕັມແລ້ວ.
- ບໍ່ສາມາດຈັບຄູ່ໄດ້:
- ໃຫ້ແນ່ໃຈວ່າ Bluetooth ຖືກເປີດໃຊ້ຢູ່ໃນອຸປະກອນຂອງທ່ານ.
- ໃຫ້ແນ່ໃຈວ່າຫູຟັງຢູ່ໃນໂໝດຈັບຄູ່ (ໄຟ LED ກະພິບສີແດງ ແລະ ສີຟ້າ).
- ຍ້າຍຫູຟັງເຂົ້າໃກ້ອຸປະກອນຂອງທ່ານ.
- ລອງຣີສະຕາດທັງຫູຟັງ ແລະອຸປະກອນຂອງທ່ານ.
- ບໍ່ມີສຽງ / ລະດັບສຽງຕ່ຳ:
- ກວດເບິ່ງລະດັບສຽງໃນທັງຫູຟັງ ແລະອຸປະກອນທີ່ເຊື່ອມຕໍ່ຂອງທ່ານ.
- ໃຫ້ແນ່ໃຈວ່າຫູຟັງໄດ້ເຊື່ອມຕໍ່ກັບອຸປະກອນຂອງທ່ານຢ່າງຖືກຕ້ອງແລ້ວ.
- If using the Truefree App, check EQ settings.
- ການເຊື່ອມຕໍ່ແບບບໍ່ຢຸດຢັ້ງ:
- ໃຫ້ແນ່ໃຈວ່າບໍ່ມີສິ່ງກີດຂວາງລະຫວ່າງຫູຟັງແລະອຸປະກອນຂອງທ່ານ.
- ຫຼີກເວັ້ນການແຊກແຊງໄຟຟ້າທີ່ເຂັ້ມແຂງ.
- Update firmware via the Truefree App if available.
- ບັນຫາຄຸນນະພາບການໂທ:
- ໃຫ້ແນ່ໃຈວ່າໄມໂຄຣໂຟນບໍ່ຖືກກີດຂວາງ.
- ຍ້າຍໄປຢູ່ໃນສະພາບແວດລ້ອມທີ່ງຽບກວ່າຖ້າເປັນໄປໄດ້.
For further assistance, please contact truefree customer support.
7. ຂໍ້ມູນຈໍາເພາະ
| ຄຸນສົມບັດ | ລາຍລະອຽດ |
|---|---|
| ຊື່ຕົວແບບ | truefree F2 |
| ເຕັກໂນໂລຊີການເຊື່ອມຕໍ່ | ໄຮ້ສາຍ (Bluetooth) |
| ລຸ້ນ Bluetooth | 5.3 |
| ຂະໜາດໄດເວີສຽງ | 16.2 ມມ |
| ຊ່ວງຄວາມຖີ່ | 20 Hz - 20,000 Hz |
| ຊີວິດຫມໍ້ໄຟ | ສູງສຸດ 15 ຊົ່ວໂມງ |
| ພອດສາກໄຟ | USB-C |
| ລະດັບຄວາມຕ້ານທານນ້ໍາ | IPX4 (ກັນນໍ້າ) |
| ປະເພດການຄວບຄຸມ | ການຄວບຄຸມປຸ່ມ |
| ໄມໂຄຣໂຟນ | ໄມໂຄຣຄູ່ |
| ຄຸນນະສົມບັດພິເສດ | Fast Charging, Lightweight, Multipoint Pairing, Game Mode (43ms low latency) |
| ການຈັດວາງຫູ | ເປີດຫູ |
| ວັດສະດຸ | Plastic, Silicone, TPU |
| ນ້ໍາຫນັກລາຍການ | 24.4 ກຣາມ (0.861 ອອນສ໌) |
| ຂະໜາດສິນຄ້າ | 2.24 x 5.39 x 6.89 ນິ້ວ |
8. ການຮັບປະກັນແລະການສະຫນັບສະຫນູນ
truefree is committed to providing excellent customer experience. Your truefree F2 headphones come with a warranty. For specific warranty terms and conditions, please refer to the warranty card included in your package or visit the official truefree webເວັບໄຊ.
If you have any problems or suggestions regarding the product, please do not hesitate to contact truefree customer support. They are ready to offer a satisfactory solution.
- ການຊ່ວຍເຫຼືອລູກຄ້າ: Refer to the contact information provided on the truefree webສະຖານທີ່ຫຼືການຫຸ້ມຫໍ່ຜະລິດຕະພັນຂອງທ່ານ.
- ຊັບພະຍາກອນອອນໄລນ໌: Visit the official truefree website for FAQs, updated manuals, and support articles.





