TOA Electronics Emergency Remote Microphone - RM-300MFPS
TOA Electronics Emergency Remote Microphone - RM-300MFPS is backordered and will ship as soon as it is back in stock.
Shipping Availability*
Shipping Availability*
Free Ground Shipping on Most Orders Over $250.00
Looking for the best price or expert advice? Give us a call at 1-888-230-3661 or use the Live Chat below. Buying 1 or 100, you may qualify for greater savings beyond the advertised price.
Product Overview
The TOA RM-300MF is an emergency fireman's microphone designed exclusively for the VM-3000 Series voice evacuation system. It gives first responders and trained operators direct control to start and stop pre-recorded evacuation and alert messages and to make live emergency announcements. A dedicated emergency activation key and a CPU bypass switch allow broadcasts to reach all zones even in the event of a system CPU error. The RM-300MF serves as the central operator interface for life-safety paging in commercial and institutional buildings.
Product Description
The RM-300MF connects to the VM-3000 system over shielded CPEV cable or Category 5 shielded twisted-pair (CAT5-STP), with a total run up to 800 m, and is powered at 24 V DC from the system. It includes a unidirectional dynamic microphone with a talk key and a switchable compressor for intelligible speech under pressure. Dedicated keys cover emergency, evacuate, alert, and emergency-reset functions, while a comprehensive indicator set reports power, emergency, communication failure, CPU-off, evacuation and alert announcements, microphone in-use, and external equipment status. Up to three RM-320F extension units connect to the RM-300MF to add zone-selection and failure-acknowledgment keys. Microphone and buzzer volume controls let the operator balance announcement levels for the room. As a commercial-grade life-safety component, it integrates directly into the VM-3000 paging and emergency broadcast chain. To build out the amplifier side of a system, browse TOA VM-3000 voice evacuation products at Creation Networks.

Key Features
- Emergency activation key — Lets authorized operators trigger emergency mode and live announcements immediately.
- Pre-recorded message control — Starts and stops automated evacuation and alert broadcasts on demand.
- CPU bypass switch — Sends emergency broadcasts to all zones even if the system CPU fails.
- Compressor microphone — Unidirectional dynamic element with switchable compression keeps speech clear under stress.
- RM-320F expansion — Supports up to three extension units for additional zone-selection and acknowledgment keys.
- Long cable runs — Connects over CPEV or CAT5-STP for a total line length up to 800 m.
- Comprehensive status indicators — Reports power, emergency, communication failure, and announcement states at a glance.
Typical Applications
- Government space
- House of worship
- Auditorium
- Commercial meeting space
- Multi-purpose room
- Training room
Technical Specifications
| Power Source | 24 V DC (operating range 15–40 V DC, supplied from the VM-3000 system) |
|---|---|
| Operation Keys | Emergency, Evacuate, Alert, Emergency reset, CPU switch, Reset |
| Current Consumption | 120 mA (RM-300MF); 660 mA with three RM-320F connected |
| Distortion | 1% or less |
| Frequency Response | 200 Hz – 15 kHz |
| Signal-to-Noise Ratio | 55 dB or more |
| Microphone | Unidirectional dynamic with talk key and switchable compressor |
| Volume Controls | Microphone volume, buzzer volume |
| Maximum Cable Length | Total 800 m |
| Connection Cable | Shielded CPEV or CAT5-STP; M3 screw terminal |
| Connectable RM-320F | Max. 3 units |
| Operating Temperature | –5 °C to +45 °C |
| Operating Humidity | 5 to 95 %RH (no condensation) |
| Finish | ABS resin, blueish gray (PANTONE 538 or equivalent) |
| Dimensions | 200 (W) × 215 (H) × 82.5 (D) mm |
| Weight | 1.1 kg |
Frequently Asked Questions
Which system is the RM-300MF compatible with? It is designed exclusively for the TOA VM-3000 Series voice evacuation and public address system.
How does it install and integrate? It connects to the VM-3000 system over shielded CPEV or CAT5-STP cable to an M3 screw terminal, with a total cable run up to 800 m, and is powered at 24 V DC from the system.
What happens if the system CPU fails? A CPU bypass switch lets the microphone broadcast emergency announcements to all zones even during a CPU error.
Can I add more function keys? Yes. Up to three RM-320F extension units connect to the RM-300MF to assign zone-selection or failure-acknowledgment functions.
Is it suitable for life-safety installations? Yes. It is purpose-built for firefighter and operator use during emergencies as part of a VM-3000 voice alarm system; follow local code and AHJ requirements.
What warranty and support apply? The unit carries the TOA manufacturer warranty; contact Creation Networks for warranty, availability, and system-integration support.
At Creartion Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
Nationwide Audiovisual Services, Design, Installation & Support
Creation Networks is a trusted nationwide partner for complete audiovisual solutions — delivering expert AV system sales, professional design, programming, installation, and ongoing support to organizations across the United States.
From Microsoft Teams Rooms and enterprise video conferencing to LED video walls, live streaming production, and hybrid collaboration systems, we provide end-to-end AV integration using premium, certified technology from industry leaders including Crestron, Q-SYS, Shure, Extron, and Absen.
Whether you operate a single location or manage facilities nationwide, Creation Networks ensures your AV systems are designed for reliability, scalability, security, and long-term performance — helping your organization communicate more effectively and operate at peak efficiency.
CREATION NETWORKS — A PARTNER YOU CAN TRUST SINCE 2006











