1. Бүттүview
The BOYA WM4 PRO-K2 is a compact and easy-to-use 2.4 GHz wireless lavalier microphone system designed for clear sound recording. It features two omnidirectional lavalier transmitters and one receiver, making it ideal for interviews, audio recording, video recording, and vlogging. The system supports real-time sound monitoring and offers an operation range of up to 50 meters (164 feet) without obstacles. It is compatible with a wide range of devices including smartphones, DSLR cameras, consumer camcorders, and PCs.

Image 1.1: The BOYA WM4 PRO-K2 system components, including two transmitters, one receiver, and a lavalier microphone.
2. Пакеттин мазмуну
The BOYA WM4 PRO-K2 system includes the following items:
- 2 x BY-WM4 PRO Transmitters (TX)
- 1 x BY-WM4 PRO Receiver (RX)
- 2 x Жакалуу микрофондор
- 1 x 3.5mm to TRS Audio Output Cable
- 1 x 3.5mm to TRRS Audio Output Cable
- 1 x муздак бут кийим
- 1 x Катуу куту
- 2 x Foam Windscreens
- 2 x Жүндүү алдыңкы айнектер
- 1 х USB-C кубаттоо кабели
- 1 x USB-C - USB-A адаптер
- Кепилдик картасы

Image 2.1: All items included in the BOYA WM4 PRO-K2 package.
3. Орнотуу
- Батареяны орнотуу: Insert two AAA batteries into each transmitter and the receiver.
- Микрофондорду туташтыруу: Plug the lapel microphones into the 'LINE IN' port on the transmitters.
- Attach Receiver to Device:
- For DSLR cameras/camcorders: Use the 3.5mm to TRS audio output cable. Attach the receiver to your camera's hot shoe using the cold shoe mount.
- For smartphones/PCs: Use the 3.5mm to TRRS audio output cable.
- Күйгүзүү: Turn on both transmitters and the receiver. The units are pre-paired from the factory. If re-pairing is needed, refer to the 'Operating Instructions' section.

Image 3.1: The receiver unit connected to a smartphone for recording.
Video 3.1: An official product video demonstrating the BOYA Wireless Microphone system setup and usage.
4. Иштөө нускамалары
- Жупташтыруу: The units are factory-paired. If re-pairing is necessary, ensure both transmitter(s) and receiver are powered on. Press and hold the 'Pair' button on both units until the indicator lights show a stable connection.
- Жайгашкан жери: Clip the transmitter(s) to your clothing, close to the sound source, for optimal audio capture.
- Мониторинг: The receiver supports real-time sound monitoring via its headphone jack. Connect headphones to monitor audio quality during recording.
- Диапазон: The system operates effectively up to 50 meters (164 feet) in open, obstacle-free environments. Performance may vary in areas with interference or physical obstructions.
- Charging While Recording: The receiver features a pass-through charging port, allowing you to charge your smartphone or recording device while the microphone system is in use.

Сүрөт 4.1: Жакын пландан view of the receiver and transmitter ports, including line-in/out and charging ports.
5. Техникалык тейлөө
- Тазалоо: Түзмөктөрдү тазалоо үчүн жумшак, кургак чүпүрөктү колдонуңуз. Катуу химиялык заттарды же абразивдүү материалдарды колдонуудан алыс болуңуз.
- Сактагыч: Store the microphone system in its hard case when not in use to protect it from dust, moisture, and physical damage.
- Батареяны алмаштыруу: Replace AAA batteries as needed. Ensure correct polarity when inserting new batteries.
- Алдын ала айнекти багуу: Regularly clean or replace foam and furry windscreens to maintain optimal audio quality and prevent debris accumulation.
6. Кыйынчылыктарды
- Үн жок/Аудио начар:
- Бардык түзмөктөрдүн кубатка сайылып, туура жупташтырылганын текшериңиз.
- Check battery levels in both transmitters and receiver.
- Verify that the correct audio output cable (TRS for cameras, TRRS for smartphones) is used and securely connected.
- Confirm that the microphone is properly plugged into the transmitter.
- Adjust the recording level on your recording device.
- Тоскоолдуктар/Окуудан чыгып кетүүлөр:
- Өткөргүч менен кабыл алгычтын ортосундагы аралыкты азайтыңыз.
- Avoid areas with strong electromagnetic interference (e.g., Wi-Fi routers, microwaves).
- Ensure there are no large physical obstructions between the transmitter and receiver.
- Жупташтырылбаган бирдиктер:
- Power cycle all units (turn off, then on again).
- Perform a manual re-pairing process as described in 'Operating Instructions'.
7. Техникалык шарттар
| Өзгөчөлүк | Спецификация |
|---|---|
| Бренд | БОЯ |
| Модель номери | BY-WM4 PRO |
| Байланыш технологиясы | 2.4 ГГц зымсыз |
| Микрофон форма фактору | Lavalier |
| Полярдык үлгү | Көп багыттуу |
| Каналдардын саны | 2 |
| Операция диапазону | 50 м (164 фут) чейин тоскоолдуксуз |
| Power Source | Battery Powered (2 AA batteries required per unit) |
| Ызы-чуунун катышы | 84 дБ |
| Аудио сезгичтиги | 90 децибел |
| Frequency Response | 14 KHz |
| Элементтин өлчөмдөрү L x W x H | 6.3 x 5.91 x 1.57 дюйм |
| Элемент Салмагы | 10.2 унция (290 грамм) |
| Шайкеш түзмөктөр | Camera, Smartphone, Camcorder, PC |
| Туташтыргыч түрү | 3.5 мм Джек |
8. Кепилдик жана колдоо
BOYA offers a 12-month product warranty and post-sales service. If you are not satisfied with your product or encounter any issues, please contact BOYA customer support for assistance.





