1. Πάνωview
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. Περιεχόμενα συσκευασίας
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 Μικρόφωνα Πέτου
- 1 x 3.5mm to TRS Audio Output Cable
- 1 x 3.5mm to TRRS Audio Output Cable
- 1 x Βάση στήριξης ψυχρού παπουτσιού
- 1 x Hard Case
- 2 x Αφρώδη Παρμπρίζ
- 2 x Γούνινα παρμπρίζ
- 1 x Καλώδιο φόρτισης USB-C
- 1 x Προσαρμογέας USB-C σε USB-A
- Κάρτα Εγγύησης

Image 2.1: All items included in the BOYA WM4 PRO-K2 package.
3. Ρύθμιση
- Εγκατάσταση μπαταριών: 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.
- Ενεργοποίηση: 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. Οδηγίες λειτουργίας
- Σύζευξη: 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.
- Τοποθέτηση: Clip the transmitter(s) to your clothing, close to the sound source, for optimal audio capture.
- Παρακολούθηση: The receiver supports real-time sound monitoring via its headphone jack. Connect headphones to monitor audio quality during recording.
- Σειρά: 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.
- Φόρτιση κατά την εγγραφή: The receiver features a pass-through charging port, allowing you to charge your smartphone or recording device while the microphone system is in use.

Εικόνα 4.1: Κοντινό πλάνο view of the receiver and transmitter ports, including line-in/out and charging ports.
5. Συντήρηση
- Καθάρισμα: Χρησιμοποιήστε ένα μαλακό, στεγνό πανί για να καθαρίσετε τις μονάδες. Αποφύγετε τη χρήση σκληρών χημικών ουσιών ή λειαντικών υλικών.
- Αποθήκευση: Store the microphone system in its hard case when not in use to protect it from dust, moisture, and physical damage.
- Αντικατάσταση μπαταρίας: Replace AAA batteries as needed. Ensure correct polarity when inserting new batteries.
- Φροντίδα παρμπρίζ: Regularly clean or replace foam and furry windscreens to maintain optimal audio quality and prevent debris accumulation.
6. Αντιμετώπιση Προβλημάτων
- No Sound/Poor Audio:
- Βεβαιωθείτε ότι όλες οι μονάδες είναι ενεργοποιημένες και σωστά συνδεδεμένες.
- 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.
- Παρεμβολές/Απώλειες:
- Μειώστε την απόσταση μεταξύ πομπού και δέκτη.
- Avoid areas with strong electromagnetic interference (e.g., Wi-Fi routers, microwaves).
- Ensure there are no large physical obstructions between the transmitter and receiver.
- Οι μονάδες δεν αντιστοιχίζονται:
- Power cycle all units (turn off, then on again).
- Perform a manual re-pairing process as described in 'Operating Instructions'.
7. Προδιαγραφές
| Χαρακτηριστικό | Προσδιορισμός |
|---|---|
| Μάρκα | BOYA |
| Αριθμός μοντέλου | BY-WM4 PRO |
| Τεχνολογία Συνδεσιμότητας | Ασύρματο 2.4 GHz |
| Συντελεστής φόρμας μικροφώνου | Λαβαλιέ |
| Πολικό μοτίβο | Πανκατευθυντικό |
| Αριθμός καναλιών | 2 |
| Εύρος Λειτουργίας | Έως 50 μέτρα (164 πόδια) χωρίς εμπόδια |
| Πηγή ισχύος | Battery Powered (2 AA batteries required per unit) |
| Λόγος σήματος προς θόρυβο | 84 dB |
| Ήχου Ευαισθησία | 90 ντεσιμπέλ |
| Απόκριση συχνότητας | 14 KHz |
| Διαστάσεις αντικειμένου Μ x Π x Υ | 6.3 x 5.91 x 1.57 ίντσες |
| Βάρος αντικειμένου | 10.2 ουγγιές (290 γραμμάρια) |
| Συμβατές Συσκευές | Camera, Smartphone, Camcorder, PC |
| Τύπος σύνδεσης | 3.5 mm Jack |
8. Εγγύηση και υποστήριξη
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.