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Suomi 
BOYA BY-WM4 Pro-K3 Duo Lavalier Microphone Wireless Microphone
General
| Model / Part | BY-WM4 Pro-K3 |
|---|---|
| Brand | BOYA |
| Type | Wireless Lavalier Microphone System |
| Color | Black |
Wireless & System
| Wireless Technology | Digital 2.4 GHz (2405-2478 MHz) |
|---|---|
| RF Modulation | GFSK (Gauss Frequency Shift Keying) |
| Operating Range | Up to ~60 m (line-of-sight, no obstacles) |
| Channels Supported | Dual-channel system (can add a second transmitter) |
Audio Performance
| Frequency Response | 35 Hz – 14 kHz ± 3 dB |
|---|---|
| Signal-to-Noise Ratio (SNR) | ≥ 84 dB |
| Total Harmonic Distortion (THD) | ≤ 0.05 % |
| Polar Pattern | Omnidirectional lavalier microphone |
Transmitter
| Power Output (RF) | ≈ 3 mW |
|---|---|
| Input Connector | 3.5 mm mini jack |
| Power Source | 2 × AAA batteries (not included) |
| Dimensions (Tx) | ≈ 45 × 70 × 35 mm |
| Weight (Tx) | ≈ 47 g |
Receiver
| Connector | Apple MFi Certified Lightning |
|---|---|
| Headphone Output | 3.5 mm headphone monitoring jack |
| Powered By | iOS device (no battery needed) |
| Dimensions (Rx) | ≈ 82 × 30.7 × 12 mm |
| Weight (Rx) | ≈ 12 g |
Features
| Audio Modes | Selectable Mono / Stereo on receiver |
|---|---|
| Monitoring | Headphone audio monitoring via receiver |
Included
| Transmitter (TX4 Pro) | 1 × bodypack transmitter |
|---|---|
| Receiver (RXD) | 1 × Lightning receiver |
| Lavalier Microphone | 1 × omnidirectional lav mic |
| Wind Screen | 1 × foam windscreen |
| Microphone Clip | 1 × clip |
| Pairing Pin | 1 × pin tool |
| Hard Case | 1 × protective case |
Identifiers
| MPN | BY-WM4 PRO-K3 |
|---|---|
| GTIN / EAN / UPC | 6971008025699 |
