Description
Professional 3.5mm Extra Loud Receive-Only Acoustic Tube Earpiece
Genuine Motorola wideband-ready surveillance earpiece with quick-disconnect translucent tube, TIA-4950 UL intrinsically safe rating, and extra loud audio support.
The Motorola PMLN8120A (catalog part PMLN8120 / PMLN8120A) is an authentic original equipment manufacturer (OEM) commercial receive-only surveillance earpiece designed for covert, private voice communications when using a remote speaker microphone (RSM). Terminating in a standard unthreaded 3.5mm right-angle connector, this secondary earpiece plugs directly into the audio jack of compatible speaker mics or select portable transceivers. It instantly redirects incoming radio transmissions into the user's ear, muting the loud external speaker on the microphone to maintain operational confidentiality across private security, crowd management, corporate hospitality, retail, and rental applications.
Engineered with advanced wideband-ready acoustic drivers, the Motorola PMLN8120A supports the host radio's native "Extra Loud" (X-Loud) audio profile, delivering clear, distortion-free speech even in high-decibel industrial or concert environments. The unit features an ergonomic medical-grade translucent coiled acoustic tube that rests discreetly behind the ear, equipped with a twist-lock quick-disconnect coupler that facilitates fast sanitization, shift-sharing, and tube replacement. Certified to stringent TIA-4950 (UL) intrinsic safety standards for deployment in hazardous operating environments alongside intrinsically safe host radios, the PMLN8120A operates in full compliance with commercial FCC Licensing standards across Motorola APX, APX NEXT, MOTOTRBO R-Series, Ion, and XPR platforms.
Key Features & Benefits
-
Extra Loud (X-Loud) Audio Optimization: Specifically tuned to support host radio loud audio modes, delivering enhanced acoustic punch and intelligibility through high background noise.
-
Wideband-Ready Acoustic Transducer: Wideband frequency response reproduces natural voice nuances, improving message comprehension during critical security details.
-
TIA-4950 (UL) Intrinsically Safe Certified: Rated for safe deployment in hazardous, combustible environments when paired with certified intrinsically safe radio equipment.
-
Quick-Disconnect Translucent Acoustic Tube: Flexible medical-grade clear coil provides discreet covert listening and detaches in seconds for cleaning or personal hygienic ear tip swaps.
-
Universal 3.5mm Unthreaded Connector: Standard 3.5mm right-angle audio plug seats firmly into the accessory ports of remote speaker microphones without requiring threaded collars.
-
Featherweight 14.8g Profile: Ultra-lightweight construction with an integrated 360-degree garment clip prevents neck strain and cord snagging over 12-hour shifts.
Specifications
| Attribute |
Details |
| Brand |
Motorola Solutions |
| Model / SKU |
PMLN8120A / PMLN8120 |
| Part Type |
RSM 3.5mm Receive-Only Acoustic Tube Earpiece |
| Connector Interface |
3.5 mm (1/8") Right-Angle Unthreaded Audio Plug |
| Acoustic Tube |
Quick-Disconnect Translucent Coiled Acoustic Tube |
| Speaker Performance |
Wideband Ready / Extra Loud (X-Loud) Support |
| Intrinsic Safety Rating |
TIA-4950 (UL Certified) |
| Wearing Style |
In-Ear with Clear Acoustic Tube (Reversible Left or Right Ear) |
| Dimensions (W x H x L) |
24.0 x 19.0 x 490.0 mm (0.94 x 0.75 x 19.29 in) |
| Weight |
0.033 lbs (14.8 g) |
| Operating Temperature |
-30°C to +60°C (-22°F to +140°F) |
| Color Finish |
Black Lead Cable with Clear Translucent Tube |
Compatibility
Compatible Motorola Portable Two-Way Radios
|
|
|
|
| APXN30 |
APXN50 |
APXN70 |
APXN70XE |
| APXNEXTENHANCED |
APXNEXTINTLFED |
APXNEXTXE4GLTEPLUS5G |
DP1400 |
| MACKENZIE |
R2 |
R3 |
MXP600 |
| MXP660 |
MXP7000 |
R7A |
ION |
| R7 |
XPR3300 |
XPR3300e |
XPR3550 |
| XPR3550e |
|
|
|
Recommended Accessories
Antennas & RF Accessories
Batteries & Power Hardware
Programming & Wireless Accessories
More Resources
Frequently Asked Questions
What does the "A" suffix at the end of part number PMLN8120A mean?
The "A" suffix designates the latest official manufacturing revision from Motorola Solutions. PMLN8120A represents the current production iteration of the base part number PMLN8120, featuring updated internal wideband transducers and reinforced cable strain reliefs while delivering complete backward compatibility.
What does the "Extra Loud" feature provide on the PMLN8120A?
The PMLN8120A is acoustically balanced to handle the boosted output levels produced when host radios (such as the MOTOTRBO R7 or APX series) enable their "Extra Loud" audio mode. It prevents clipping, muffling, and distortion at elevated volume settings so voice transmissions cut through loud industrial environments.
Does this earpiece connect directly to the radio or to a speaker microphone?
The PMLN8120A features an unthreaded 3.5mm plug designed primarily to connect into the 3.5mm earphone socket on a remote speaker microphone (RSM). It can also connect directly to portable radios or audio adapters equipped with a standard 3.5mm audio accessory port.
Is the Motorola PMLN8120A intrinsically safe?
Yes. The PMLN8120A carries a certified TIA-4950 (UL) intrinsic safety rating, making it compliant for use in classified hazardous locations when paired with compatible intrinsically safe Motorola radios and speaker microphones.
Can multiple team members share this earpiece across different shifts?
Yes. Thanks to the quick-disconnect twist-lock design, individual users can detach the acoustic tube assembly and swap on their own personal tubes and silicone ear tips between shifts, ensuring hygienic shared operation of the underlying audio cable.
Warranty
1-year manufacturer’s replacement warranty.
