1. ختمview
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. پیکیج کے مشمولات
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 ایکس لیپل مائکروفونز
- 1 x 3.5mm to TRS Audio Output Cable
- 1 x 3.5mm to TRRS Audio Output Cable
- 1 ایکس کولڈ شو ماؤنٹ
- 1 x Hard Case
- 2 ایکس فوم ونڈ اسکرین
- 2 x Furry Windscreens
- 1 X USB-C چارجنگ کیبل
- 1 X USB-C سے USB-A اڈاپٹر
- وارنٹی کارڈ

Image 2.1: All items included in the BOYA WM4 PRO-K2 package.
3. سیٹ اپ
- بیٹریاں انسٹال کریں: Insert two AAA batteries into each transmitter and the receiver.
- Connect Microphones: 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.
- پاور آن: 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. آپریٹنگ ہدایات
- جوڑا بنانا: 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.
- جگہ کا تعین: Clip the transmitter(s) to your clothing, close to the sound source, for optimal audio capture.
- نگرانی: The receiver supports real-time sound monitoring via its headphone jack. Connect headphones to monitor audio quality during recording.
- حد: 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.
- ریکارڈنگ کے دوران چارج کرنا: The receiver features a pass-through charging port, allowing you to charge your smartphone or recording device while the microphone system is in use.

تصویر 4.1: کلوز اپ view of the receiver and transmitter ports, including line-in/out and charging ports.
5 دیکھ بھال
- صفائی: یونٹوں کو صاف کرنے کے لیے نرم، خشک کپڑا استعمال کریں۔ سخت کیمیکلز یا کھرچنے والے مواد کے استعمال سے پرہیز کریں۔
- ذخیرہ: Store the microphone system in its hard case when not in use to protect it from dust, moisture, and physical damage.
- بیٹری کی تبدیلی: Replace AAA batteries as needed. Ensure correct polarity when inserting new batteries.
- ونڈ اسکرین کی دیکھ بھال: Regularly clean or replace foam and furry windscreens to maintain optimal audio quality and prevent debris accumulation.
6 خرابیوں کا سراغ لگانا
- No Sound/Poor Audio:
- یقینی بنائیں کہ تمام یونٹس چل رہے ہیں اور مناسب طریقے سے جوڑ رہے ہیں۔
- 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.
- Interference/Dropouts:
- ٹرانسمیٹر اور ریسیور کے درمیان فاصلہ کم کریں۔
- Avoid areas with strong electromagnetic interference (e.g., Wi-Fi routers, microwaves).
- Ensure there are no large physical obstructions between the transmitter and receiver.
- اکائیاں جوڑی نہیں بن رہی ہیں:
- Power cycle all units (turn off, then on again).
- Perform a manual re-pairing process as described in 'Operating Instructions'.
7. وضاحتیں
| فیچر | تفصیلات |
|---|---|
| برانڈ | بویا |
| ماڈل نمبر | BY-WM4 PRO۔ |
| کنیکٹوٹی ٹیکنالوجی | 2.4 گیگا ہرٹز وائرلیس |
| مائیکروفون فارم فیکٹر | لاولیئر |
| پولر پیٹرن | ہمہ جہتی |
| چینلز کی تعداد | 2 |
| آپریشن رینج | Up to 50m (164ft) without obstacle |
| طاقت کا منبع | Battery Powered (2 AA batteries required per unit) |
| سگنل ٹو شور کا تناسب | 84 ڈی بی |
| آڈیو حساسیت | 90 ڈیسیبل |
| تعدد رسپانس | 14 KHz |
| آئٹم کے طول و عرض L x W x H | 6.3 x 5.91 x 1.57 انچ |
| شے کا وزن | 10.2 اونس (290 گرام) |
| ہم آہنگ آلات | Camera, Smartphone, Camcorder, PC |
| کنیکٹر کی قسم | 3.5 ملی میٹر جیک |
8. وارنٹی اور سپورٹ
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.