Megahertz Technology

  • Motorola RM780 IMPRES™ RSM, 3.5MM EARPIECE, RADIO CONTROLS, IP68, HAZLOC
  • Motorola RM780 IMPRES™ RSM, 3.5MM EARPIECE, RADIO CONTROLS, IP68, HAZLOC

Motorola RM780 IMPRES™ RSM, 3.5MM EARPIECE, RADIO CONTROLS, IP68, HAZLOC

Model Number:  PMMN4128A

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.

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.

Physical Characteristics


Weight (LB-Pound): 0.462971

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

Audio Jack: 3.5MM NON-THREADED

Channel Control: No

Display: NO DISPLAY

Intelligent Audio: Yes

Intrinsically Safe: TIA4950(UL)

IP Rating: IP68

Microphone Type: OMNI-DIRECTIONAL

Programmable Button: Yes

Technology: IMPRES

Industry: –

Volume Control: Yes

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