FM/UL-Approved Receive-Only D-Shell Earpiece for Speaker Microphones

The Motorola PMLN4620B D-Shell Earpiece provides discreet, receive-only radio monitoring when connected to a compatible remote speaker microphone. Incoming calls are routed directly to the earpiece, allowing users to hear radio traffic privately without broadcasting conversations through the speaker microphone’s external speaker.

Its lightweight D-shell design rests comfortably over the ear without requiring an in-ear earbud or acoustic tube. This makes it suitable for extended shifts and shared-use environments where comfort, hygiene, and awareness of surrounding sounds are important.

The standard 3.5 mm plug connects directly to compatible Motorola remote speaker microphones. Because the PMLN4620B is receive-only, users continue transmitting through the microphone and push-to-talk button on the connected remote speaker microphone.

The PMLN4620B is certified to UL/TIA 4950 and Factory Mutual intrinsic-safety standards for use as part of an appropriately approved radio and speaker-microphone configuration. This makes it a practical private-listening solution for qualifying industrial and hazardous-location communication systems.

Key Features

• Receive-only D-shell earpiece

• Provides private listening for incoming radio calls

• Comfortable over-the-ear wearing style

• Does not require an in-ear earbud

• Standard 3.5 mm audio connector

• Connects to compatible remote speaker microphones

• No integrated microphone or PTT button

• Lightweight design for extended wear

• Suitable for shared-use environments

• UL/TIA 4950 compliant

• Factory Mutual approved

• Replaces MDPMLN4620A

• Genuine Motorola Solutions accessory

• Motorola part number PMLN4620B

Compatibility

Compatible with Motorola remote speaker microphones equipped with a compatible 3.5 mm audio jack.

Radio compatibility depends on the remote speaker microphone being used. The earpiece does not connect directly to the radio.

Intrinsic-safety approval applies only when the earpiece is used as part of a fully approved radio, battery, and remote speaker microphone configuration. Always verify the complete system’s approval requirements before use in a hazardous location.

Ideal Applications

• Manufacturing facilities

• Oil and gas operations

• Utilities and energy operations

• Construction sites

• Security teams

• Transportation and logistics

• Warehouses and distribution centers

• Government and public-safety operations

• Approved hazardous-location communication systems

Why Buy from Delmarva Communications?

Delmarva Communications has more than 20 years of experience helping organizations find dependable communication equipment and accessories. Our knowledgeable team can help confirm compatibility and ensure you receive the correct Motorola accessory for your communication needs.