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BOYA BY-WM8 Pro-K2 Professional Two-Person UHF Wireless Lavalier Microphone System
KSh 22,800.00
Technical Specifications
Category Specification
System Oscillator Architecture PLL Synthesized Control Oscillator
RF Carrier Frequency Range Group A: 576.4 MHz – 599.9 MHz | Group B: 568.6 MHz – 592.1 MHz
Selectable Channels 48 Independent Wireless Channels
Maximum Transmission Range Up to 100 meters (328 feet) line-of-sight without physical obstacles
System Frequency Response 40 Hz to 18 kHz ($\pm 3\text{ dB}$)
Signal-to-Noise Ratio (SNR) Receiver: 70 dB or more | Lavalier Microphone: 74 dB SPL
BOYA BY-WM8 Pro-K2 Professional Two-Person UHF Wireless Lavalier Microphone System
Capture broadcast-quality, multi-person dialogues seamlessly with the BOYA BY-WM8 Pro-K2. This professional-grade dual-channel wireless microphone system operates on the secure Ultra High Frequency (UHF) band, ensuring an interference-free audio workflow that easily avoids crowded 2.4GHz consumer spectrums. The BY-WM8 Pro-K2 turnkey package includes two rugged bodypack transmitters, two professional omnidirectional lavalier microphones, and a single camera-mountable dual-channel receiver. It allows you to record two separate on-camera subjects simultaneously into a single DSLR, mirrorless camera, camcorder, or field recorder without needing secondary receiver hardware.
Technical Specifications
| Category | Specification |
| System Oscillator Architecture | PLL Synthesized Control Oscillator |
| RF Carrier Frequency Range | Group A: 576.4 MHz – 599.9 MHz | Group B: 568.6 MHz – 592.1 MHz |
| Selectable Channels | 48 Independent Wireless Channels |
| Maximum Transmission Range | Up to 100 meters (328 feet) line-of-sight without physical obstacles |
| System Frequency Response | 40 Hz to 18 kHz ($\pm 3\text{ dB}$) |
| Signal-to-Noise Ratio (SNR) | Receiver: 70 dB or more | Lavalier Microphone: 74 dB SPL |
| Total Harmonic Distortion (THD) | 0.5% or less ($32\,\Omega, 1\text{ kHz}, 65\text{ mW}$ output) |
| RF Output Power Strength | $\le 10\text{ mW}$ |
| Audio Input Connectors (TX) | 3.5mm Threaded Locking Mini-Jack (Dedicated MIC and LINE IN ports) |
| Audio Output Connectors (RX) | 3.5mm Locking LINE OUT Terminal & 3.5mm Headphone Monitor Jack |
| Lavalier Microphone Profile | Back Electret Condenser capsule with Omnidirectional polar pattern |
| Power Infrastructure | 2x AA batteries per unit (Requires 6x AA batteries total for the complete setup) |
| Continuous Operation Time | Transmitter: Up to 6 hours | Receiver: Up to 4 hours (Alkaline cells) |
| Dimensions / Physical Weight | 208mm x 67mm x 29mm | Weight: TX 80g, RX 90g (Excluding batteries) |
BOYA BY-WM8 Pro-K2 Pros and Cons
Pros
- Simultaneous Two-Subject Capture: The dual-channel receiver processes both bodypack transmitters at the same time, saving valuable physical real estate on camera hot shoes.
- Resilient UHF Performance: Effortlessly punches through local Wi-Fi and Bluetooth radio noise, delivering reliable signal transmission across dense urban environments.
- Threaded Locking Terminals: Audio connection ports feature physical screw-lock mechanics that entirely prevent accidental cable tugs from ruining live broadcast feeds.
- Selectable Mono & Stereo Modes: Allows operators to output audio as a combined track (Mono) or split individual speakers onto separate left/right channels (Stereo) for fast post-production editing.
- Robust Companding Circuitry: Employs advanced digital companding to minimize structural noise floor interference, resulting in crisp, studio-clean vocal reproduction.
Cons
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High Battery Consumption: The system relies entirely on standard AA batteries; keeping multiple backup sets or heavy rechargeable cells is necessary for long filming dates.
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Larger Kit Profile: The heavy-duty bodypacks take up significantly more storage space and weight within compact tracking bags than entry-level micro clip-on units.
BOYA BY-WM8 Pro-K2 Variations and Price Guide
| Model / Variant | Key Structural Differences | Typical Price Range (KES) |
| BY-WM8 Pro-K1 | Single Subject Setup: Includes 1x TX8 Pro Bodypack Transmitter, 1x RX8 Pro Dual-Channel Receiver, and 1x Lavalier. | 16,500 – 19,500 |
| BY-WM8 Pro-K2 (This Kit) | Two-Person Setup: Includes 2x TX8 Pro Bodypack Transmitters, 1x RX8 Pro Dual-Channel Receiver, and 2x Lavaliers. | 21,500 – 24,500 |
| BY-WM8 Pro-K3 | Handheld Setup: Swaps the bodypacks for 1x BY-WHM8 Pro UHF Wireless Handheld Cardioid Microphone and 1x RX8 Pro Receiver. | 18,500 – 23,000 |
BOYA BY-WM8 Pro-K2 Suitable Application Areas
- Two-Person Field Interviews: Ideal for talk-show creators, journalists, and media crews conducting sit-down dialogs or street interviews with a host and a guest.
- Electronic News Gathering (ENG): Delivers clean broadcast audio tracking for field news reporters working alongside multiple live contributors in noisy settings.
- Documentary Filmmaking: Perfect for picking up clear conversational audio between two actors walking up to 100 meters away from the main camera placement.
- Panel Discussions & Corporate Events: Simplifies multi-speaker presentations on corporate stages by syncing multiple lapels directly into a main distribution deck.
Verdict
The BOYA BY-WM8 Pro-K2 remains an essential asset for video creators requiring a dual-source audio solution without the cost of high-end premium systems. By combining a dual-channel expandable receiver, secure screw-locking cables, and an interference-resistant UHF configuration, it provides a stable entry point for broadcast-ready multi-person recording. It represents an excellent, high-value audio solution for growing digital production toolkits.
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