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BOYA BY-M1DM Dual Omnidirectional Lavalier Universal Microphone
KSh 2,520.00
Technical Specifications
Category Specification
Acoustic Transducer Model Dual Electret Condenser Elements
Polar Pattern Profile Omnidirectional (Twin 360-degree spherical pickup areas)
System Frequency Range 65 Hz to 18 kHz
Signal-to-Noise Ratio (SNR) 74 dB SPL
Microphone Sensitivity $-30\text{ dB} \pm 3\text{ dB}$ ($0\text{ dB} = 1\text{ V/Pa}$ at $1\text{ kHz}$)
BOYA BY-M1DM Dual Omnidirectional Lavalier Universal Microphone
Simplify your two-person audio tracking with the BOYA BY-M1DM, the ultimate dual-capsule wired lapel system built for simultaneous dual-source recording. Featuring two independent omnidirectional condenser microphones joined into a single, high-grade 3.5mm TRRS output cable, the BY-M1DM completely removes the need for multiple audio recorders or complex dual-input splitters. It is perfect for interviewers, podcasters, and content creation duos. An inline power hub shifts smoothly from passive smartphone mode to active camera integration, allowing you to capture crisp, beautifully balanced dialogues on both sides of the camera.
Technical Specifications
| Category | Specification |
| Acoustic Transducer Model | Dual Electret Condenser Elements |
| Polar Pattern Profile | Omnidirectional (Twin 360-degree spherical pickup areas) |
| System Frequency Range | 65 Hz to 18 kHz |
| Signal-to-Noise Ratio (SNR) | 74 dB SPL |
| Microphone Sensitivity | $-30\text{ dB} \pm 3\text{ dB}$ ($0\text{ dB} = 1\text{ V/Pa}$ at $1\text{ kHz}$) |
| Output Electrical Impedance | $1000\,\Omega$ or less |
| Output Interconnect Port | 1x 3.5mm (1/8″) 4-Pole (TRRS) Gold-Plated Terminal |
| Total Audio Cable Reach | 4.0 meters (13 feet) robust shielded cable run |
| Inter-Capsule Spacing | 2.8 meters (9.2 feet) allocation length between the two mic heads |
| Power Infrastructure Layout | Dual-Mode Power Module (Camera ON / Smartphone OFF Switch) |
| System Power Sources | Bus-powered via phone terminal | 1x LR44 Button Cell Battery for camera setups |
| Total Component Weight | 68g (2.4 oz) |
| Included Accessory Kit | 2x Foam Windscreens, 2x All-metal Clothing Clips, 1x LR44 Battery, 1x 1/4″ Adapter, 1x Pouch |
BOYA BY-M1DM Pros and Cons
Pros
- One-Port Two-Person Tracking: Captures two individual speakers at the same time through a single input jack, keeping your field production gear incredibly lightweight.
- Discrete Dual-Channel Routing: The inline processing circuitry splits each mic to a discrete audio channel, allowing you to balance individual speaker volumes easily during post-production.
- Generous Space Distribution: The 9.2-foot space between the two microphone clips gives interview hosts and guests plenty of room to sit or stand comfortably apart.
- Universal Input Switching: A durable physical switch toggles internal configurations to provide direct compatibility with smartphones, DSLRs, camcorders, and computers.
- Eliminates Mixer Requirements: Removes the need to carry external audio mixing desks or multi-channel capture gear for basic two-person recording jobs.
Cons
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Shared Signal Management: Because both microphones use a single shared connection jack, you cannot separate or adjust individual input gain levels on the fly during live recording.
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Careful Cable Management Needed: Coiling the dual-branch 13-foot cable takes a bit of extra care to keep the individual micro-lines from tangling in your accessory kit.
BOYA BY-M1DM Variations and Price Guide
| Model / Configuration | Key Structural Differences | Typical Price Range (KES) |
| BOYA BY-M1 (Classic) | Single Subject Setup: Single mic head with a 6m continuous line; requires 1x LR44 battery for DSLR use. | 1,500 – 2,500 |
| BOYA BY-M1S (Upgrade) | Single Subject Setup: Single mic head with a battery-free configuration; updated low-noise 78dB capsule. | 2,200 – 3,200 |
| BOYA BY-M1DM (This Unit) | Two-Person Setup: Two independent mic heads on a 4m split cable; single combined 3.5mm output. | 3,000 – 4,000 |
BOYA BY-M1DM Suitable Application Areas
- Sit-Down Field Interviews: The perfect choice for talk shows, documentary makers, and mobile journalists recording structured dialogue between a host and a guest.
- Co-Hosted Podcasting & Vlogging: Ideal for YouTube couples, product reviewers, and podcast hosts looking for a simple, budget-friendly way to track two voices clearly.
- Street Journalism & Q&A Clips: Provides content creators with an agile, reliable option for recording fast, clear dialogue during random street interviews or public surveys.
- Corporate Panels & HR Training: Great for capturing clear, professional conversations between two trainers during corporate instructional videos, HR roleplays, or mock interviews.
Verdict
The BOYA BY-M1DM offers an excellent, low-cost solution for multi-person video production. By packing two premium omnidirectional lapel mics into a single, highly flexible 3.5mm terminal line, it takes the hassle out of recording two speakers at once. It remains a smart, reliable addition for any creator looking to improve their two-person interview setup without breaking the bank.
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