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PMMN4128 PMMN4128A RM780 IMPRES™ Large Wired Remote Speaker Microphone RSM

Original price was: $172.80.Current price is: $134.95.

Motorola OEM


Equipped with a loud and clear speaker, low profile swivel clip keeping the RSM closer to your body and a 3.5mm audio jack to attach an earpiece for discreet communications, it allows you to hear and be heard clearly.

Loudness 102 phon max
Wideband audio
Windporting microphone
SINC+ supported for noise suppression
3.5mm jack
UL certified
Emergency button
Work-when-wet feature
2 programmable buttons
System volume control

6 in stock

SKU: PMMN4128 PMMN4128A RM780 IMPRES™ Large Wired Remote Speaker Microphone RSM Category: Tags: , , , , , , ,

This IMPRES remote speaker microphone conveniently clips to your shirt pocket or lapel and enables easy communication without having to remove the radio from your belt. Innovative audio technology enables you to hear and be heard over crowd noise, machinery and blaring sirens. IMPRES technology allows the radio to read the audio characteristics stored in the specific MSI audio accessory and configure its audio line up to provide the highest quality transmit and receive experience possible. The water and windshielding feature is specifically designed for windy, outdoor environments and dramatically reduces the noise caused by howling winds and harsh weather. Volume control toggle increases/decreases RSM speaker volume from radio maximum to radio minimum independent of ION volume setting. 2 programmable buttons may be configured for radio functions independent of radio programmable buttons. Also features an orange emergency button. Secondary audio accessories include PMLN8120 Receive-Only Loud Audio with Translucent Tube. Field serviceable items: dust cover (PMLN8122), coil cord (PMKN4232), low profile swivel clip (PMLN8121). User Manual (MN006621A01, MN006622A01)

Physical Characteristics

Weight (LB-Pound): 0.462971

Dimensions (IN-Inch): 2.28 (W) 1.25 (H) 3.46 (L)

Product Details

Audio Jack: 3.5mm non-threaded

Channel Control: No

Display: No display

Intrinsic Safety Rating: TIA4950 (UL) HAZLOC

IP Rating: IP68

Microphone Type: Windporting

Programmable Button: Orange emergency and multiple programmable buttons

Technology: IMPRES

Volume Control: Yes


Motorola 1 year replacement warranty


APX™ N30

APX™ N50



PMMN4128 PMMN4128A RM780 RSM R7 Spec Sheet

PMMN4128 PMMN4128A RM780 ION Spec Sheet