Motorola Hand Microphone
A Motorola handheld microphone can be used when you do not want to hold the two-way radio continuously. The radio can be attached to a belt, placed in a pocket or carried in a harness holster, while the remote speaker microphone can be clipped to clothing or a bag strap. To transmit, press the PTT button on the microphone. During reception, the speaker can be positioned closer to the ear. The range includes the wired RM730, RM760 and RM780 models, as well as the wireless WM500. Read more...
• IMPRES hand microphone for MotoTRBO DM4000 series radios
• Includes a full keypad that enables you to dial phone numbers from the microphone
• The microphone has 3 customisable buttons that can be programmed with any of the control head features
• Rated sound distortion: 0.5 W @
• Shock vibration: MIL-STD-810F
• Microphone type: omnidirectional
• Operating voltage: 3.6V DC
• Battery type: lithium-ion
• Weight: 158 g
• Dimensions (for wireless RSM): 88 mm (height) x 26 mm (width) x 63 mm (depth)
• IP55 protection (with sealed dust cover)
• RM760 large RSM, capable of 102 Phon volume with a clear wind-porting microphone
• Features a low profile, swivel clip
• 3.5 mm audio jack allows discreet reception of audio
• IP68 protection
• Product manufacturer article number: PMMN4140A
• The RM730 is equipped with a small RSM loudspeaker and a windscreen microphone
• 3.5 mm audio jack socket
• It has a low profile swivel clip
• IP68 (2 minutes 4 hours) rated and UL approved
• Emergency button
• Product manufacturer article number: PMMN4131A
• Low profile, 360 degree rotatable clip
• Type: omnidirectional
• Speaker output level at maximum radio volume: 102 dB phon
• Speaker diameter: 47 mm
• Dimensions (without clip): 77 mm (length) x 58 mm (width) x 25 mm (depth)
• Weight: 212 g
• IP68 protection
• Improved, robust handheld microphone for Tetra MTM800E radio
• Audio Jack: 3.5mm
• IP Rating: IP55
• Microphone Type: Windporting
• Technology: IMPRES
• Bluetooth wireless technology
• IP rating: IP67
• Audio connector: 3.5 mm threaded
• Microphone type: Windporting
• Orange emergency button and multiple programmable buttons
• Dimensions: 58 mm (width) x 24.5 mm (height) x 81 mm (length)
• Remote Speaker Microphone (RSM)
• Application: For use in vehicles and dispatch systems
• Connector: 3.5 mm jack
• Design: durable, for professional use
• Volume control available
• Features a PTT (Push-To-Talk) button
• Equipped with a dedicated emergency button
• Compatibility: Motorola MTM5400, MTM5500, MXM600
• ATEX/IECEx-certified handheld microphone with speaker
• Sound output: up to 102 dB
• Protection: IP68
• Technology: IMPRES audio support
• Mounting: low-profile swivel clip
• Display and channel selection: none
• Compatibility: Motorola R7Ex series
• Volume control: none
• Dimensions: 60 x 82 x 26 mm
Motorola handheld microphone for communication without holding the radio
The remote speaker microphone handles transmission, received audio and PTT control. The wired RM Series is powered by the radio battery, while the WM500 operates with its own battery and a Bluetooth connection. When selecting a model, check the radio type, IP rating, controls and earpiece compatibility.
How are the handheld two-way radio microphone, PTT button and built-in speaker used?
The radio can remain in its carrying case while the microphone is positioned within easy reach. The PTT button starts transmission, while the built-in speaker plays received audio. The RM780 includes a glove-friendly PTT button, two programmable buttons, an emergency button and a top-mounted volume control.
Technical design of the RM780 IMPRES Motorola radio accessory and radio microphone
The RM780, part number PMMN4128, is a wired Remote Speaker Microphone with IMPRES support, Windporting, noise suppression and a Wind and Water Shielding grille. The microphone head measures 77 x 58 x 25 mm without the clip, while the complete kit with cable weighs 212 g. The low-profile clip rotates through 360 degrees and keeps the microphone close to the body. It can be worn upright, upside down or sideways.
What microphone, speaker and microphone cable specifications are provided for the RM780?
- Omnidirectional microphone with a typical sensitivity of -42 +/- 3 dBV.
- Microphone THD below 5 percent, Wideband; Windporting: yes.
- Speaker diameter: 47 mm; THD below 15 percent.
- Maximum power: 3 Wrms; output level: 102 dB phon.
- Coiled cable: minimum 100,000 flex cycles and minimum 40 lbs pull strength.
- Cable section length: 304 mm; accessory connector case: black polycarbonate.
An emergency button and volume control are located on the top, while the side contains the PTT button and two programmable buttons. A 3.5 mm audio jack is located on the opposite side. The PMLN8120 receive-only earpiece with translucent tube is supported. The Hot Microphone feature is available through radio software configuration.
Radio models and audio accessories
What device compatibility and microphone connector are required for the intended use?
The RM780 is compatible with MOTOTRBO ION and R7, TETRA MXP600, and APX N70, N50 and N30 radios. The RM730 and RM760 are listed in the accessory table for the R7 and ION. For ION telephony calls, a PMLN8120 3.5 mm earpiece and M-ION. The WM500 is documented as compatible with the LEX L11, BYOD Android, R7 and ION platforms. It can also be used with the PMLN7560 3.5 mm earpiece.
RM780 replacement parts include the PMLN8121 low-profile swivel clip, the PMLN8122 dust cover supplied in packs of 10, and the PMKN4232 coil cord. The radio model, software or firmware version, connector and audio accessory part number should be checked together.
Advantages of the wired RM Series:
- Powered by the radio battery.
- IP68 protection is available on the RM730, RM760 and RM780 models.
- The RM780 provides programmable buttons and volume control.
What are the most common questions about Motorola handheld microphones?
- Can the radio be used without holding it?
Yes. The radio can be attached to a belt, placed in a pocket or carried in a harness holster, while the microphone can be clipped to clothing or a bag strap. - Which models have an IP68 rating?
The RM730, RM760 and RM780. The RM780 is rated for immersion at a depth of 2 m for 4 hours. - Can an earpiece be connected to the RM780?
Yes. The 3.5 mm jack supports the PMLN8120 receive-only earpiece. - Which radios are compatible with the RM780?
MOTOTRBO ION and R7, TETRA MXP600, and APX N70, N50 and N30.
Summary for selecting a Motorola handheld microphone
The radio model and compatibility determine the selection. The RM730 is a smaller wired model, the RM760 is a basic Work-When-Wet model, and the RM780 includes programmable controls, a 3.5 mm audio jack, IMPRES support and an IP68 rating. Before ordering, check the radio type, the required software or firmware version, the connector and the earpiece part number.