1. Úvod a konecview
The BOYA BY-WM4 PRO-K3 is an incredibly lightweight, ultracompact, and easy-to-use 2.4GHz wireless microphone system designed to deliver detailed, broadcast-quality sound. It is specifically optimized for use with iPhone, iPad, iPod, and other iOS mobile devices equipped with a Lightning connector. This system provides a reliable audio solution for various applications, including filmmaking, broadcast interviews, business presentations, vlogging, and live streaming, offering clear audio capture without distance limitations.
2. Vlastnosti produktu
- Ultracompact and Lightweight: Designed for maximum portability and ease of use.
- Bezdrátová technologie 2.4 GHz: Operates on the interference-free 2.4GHz spectrum, automatically hopping to free channels for stable audio transmission.
- Vestavěný mikrofon: The transmitter features a high-quality built-in microphone, suitable for direct clip-on use.
- Lavalier Microphone Option: Includes a professional lavalier microphone for discreet placement and enhanced audio capture.
- Bezdrátový dosah: Achieves an impressive operating range of up to 164 feet (50 meters) in open areas.
- Design Plug-and-Play: Simple setup for immediate use with compatible devices.
- Monitorování sluchátek v reálném čase: Allows users to monitor audio directly from the receiver.
- Switchable Mono/Stereo Mode: Offers flexibility for different recording needs.
- Sound Attenuation Buttons: Provides control over audio levels directly on the receiver.
3. Obsah balení
Zkontrolujte prosím obsah balení, abyste se ujistili, že všechny položky jsou přítomny a v dobrém stavu.
- BY-WM4 PRO Transmitter (TX)
- BY-WM4 PRO Receiver (RXD) with Lightning Connector
- klopový mikrofon
- Foam Windscreen for Lavalier Microphone
- Klip na mikrofon
- Tvrdé přepravní pouzdro
- Uživatelská příručka

Obrázek 3.1: Přesview of the BOYA WM4 PRO-K3 system components.

Figure 3.2: Retail packaging for the BOYA WM4 PRO-K3.
4. Identifikace součásti
4.1 BY-WM4 PRO Transmitter (TX)

Figure 4.1: BY-WM4 PRO Transmitter (TX) overview.
- LED napájení: Indicates power status and pairing.
- Linkový vstup: 3.5mm vstup pro externí audio zdroje.
- Vstup pro mikrofon: 3.5mm input for the lavalier microphone.
- Anténa: Pro bezdrátový přenos signálu.
- Power OFF/ON: Slide switch to turn the unit on or off.
- Tlačítko spárování: Used for connecting the signal with the receiver.
- Klip: For attaching the transmitter to clothing or a belt.
4.2 BY-WM4 PRO Receiver (RXD)

Figure 4.2: BY-WM4 PRO Receiver (RXD) overview.
- Konektor Lightning: For direct connection to iOS devices.
- LED napájení: Indicates power status and pairing.
- Built-in Internal Antenna: Pro příjem bezdrátového signálu.
- Přepínač M/S: Toggles between Mono and Stereo output modes.
- Tlačítko spárování: Used for connecting the signal with the transmitter.
- Hlasitost +/-: Nastavuje výstupní úroveň zvuku.
- Sluchátkový jack: 3.5mm output for real-time audio monitoring.
5. Nastavení
- Nainstalujte baterie: Both the Transmitter (TX) and Receiver (RXD) units require two AAA batteries each. Open the battery compartment on the back of each unit and insert the batteries, ensuring correct polarity.
- Připojení přijímače k zařízení: Plug the Lightning connector of the RXD receiver directly into the Lightning port of your iPhone, iPad, or iPod.
- Connect Lavalier Microphone: Plug the 3.5mm jack of the lavalier microphone into the 'MIC/LINE IN' port on the TX transmitter. Secure the lavalier microphone to your clothing, approximately 6-8 inches from your mouth, using the included clip.
- Jednotky při zapnutí: Slide the 'ON/OFF' switch on both the TX transmitter and RXD receiver to the 'ON' position. The Power LED indicators on both units should light up.
- Párování (pokud je to nutné): The transmitter and receiver are pre-paired from the factory. If they do not connect automatically (indicated by a solid blue Power LED on both units), press and hold the 'Pair' button on both the TX and RXD units simultaneously until the blue LED stops blinking and remains solid. This indicates a successful connection.

Figure 5.1: Initial setup of the BOYA WM4 PRO-K3 with a smartphone.

Figure 5.2: Receiver connected to a smartphone for recording.
6. Návod k obsluze
- Záznam: Once the transmitter and receiver are successfully paired, open your preferred video recording application on your iOS device. The audio input will automatically switch to the BY-WM4 PRO-K3 system. Begin recording as usual.
- Monitorování zvuku: For real-time audio monitoring, plug headphones into the 3.5mm headphone jack on the RXD receiver. This allows you to hear the audio being captured by the microphone.
- Nastavení hlasitosti: Use the 'Volume +/-' buttons on the RXD receiver to adjust the output audio level to your recording device or headphones.
- Mono/Stereo režim: The RXD receiver features an 'M/S' switch. 'M' stands for Mono, which combines all audio channels into a single output. 'S' stands for Stereo, which keeps the left and right audio channels separate. Choose the mode that best suits your recording needs.
- Bezdrátový dosah: Maintain the transmitter within the optimal operating range of up to 164 feet (50 meters) from the receiver for best performance. Obstacles and interference can reduce this range.

Figure 6.1: Using the BOYA WM4 PRO-K3 for mobile video recording.

Figure 6.2: The BOYA WM4 PRO-K3 in an interview nastavení.

Figure 6.3: Wireless operation range.
6.1 Official Product Video: 2.4G Wireless Microphone Lavalier for Smartphone DSLR Camera
Toto video poskytuje komplexní přehledview of the BOYA WM4 PRO-K3, demonstrating its features, setup, and usage scenarios with both smartphones and DSLR cameras. It highlights the compact design, ease of use, and audio quality for various content creation needs.
7. Údržba
- Čištění: K čištění jednotek používejte měkký, suchý hadřík. Nepoužívejte agresivní chemikálie ani abrazivní materiály.
- Výměna baterie: Replace batteries when the Power LED indicator starts blinking or turns off, indicating low power. Always use fresh AAA batteries.
- Skladování: When not in use for extended periods, remove the batteries from both units to prevent leakage and store the system in its provided carrying case in a cool, dry place.
- Zacházejte opatrně: Avoid dropping the units or exposing them to extreme temperatures, moisture, or dust.
8. Řešení problémů
- Žádný audio výstup:
- Ensure both the transmitter and receiver are powered on and their Power LEDs are solid blue (indicating successful pairing).
- Zkontrolujte stav baterie a v případě nízkého nabití ji vyměňte.
- Verify the lavalier microphone is securely plugged into the transmitter's 'MIC/LINE IN' port.
- Confirm the receiver is correctly plugged into your iOS device's Lightning port.
- Check the volume level on the receiver and your recording device.
- Špatná kvalita zvuku/rušení:
- Ensure the transmitter is within the optimal operating range (within 50 meters/164 feet) and there are no major obstacles between the units.
- Avoid environments with strong 2.4GHz interference (e.g., near Wi-Fi routers, other wireless devices).
- Check the lavalier microphone placement to avoid rubbing against clothing.
- Ensure the lavalier's foam windscreen is properly installed to reduce wind noise.
- Jednotky se nepárují:
- Vypněte a znovu zapněte obě jednotky.
- Manually re-pair the units by pressing and holding the 'Pair' button on both the TX and RXD simultaneously until the blue LED becomes solid.
9. Specifikace
| Specifikace | Hodnota |
|---|---|
| Značka | BOYA |
| Název modelu | WM4 PRO-K3 |
| Tvarový faktor mikrofonu | Mikrofonní systém |
| Polární vzor | Všesměrový |
| Technologie připojení | Bezdrátové (2.4 GHz) |
| Typ konektoru | Blesk |
| Zdroj napájení | Battery Powered (2x AAA per unit) |
| Audio Citlivost | 63 dB |
| Odstup signálu od šumu | 84 dB |
| Hmotnost položky | 1.7 uncí |
| Rozměry balení | 6.73 x 4.65 x 2.24 palce |
| Barva | Černý |
| Kompatibilní zařízení | Personal Computer, Tablet, Camera, Smartphone |
10. Záruka a podpora
Specific warranty information and detailed support contacts are not available in this manual. Please refer to the product packaging or the official BOYA website for comprehensive warranty details and customer support options.





