RHINO SPEAKER MICROPHONE EP2134EC
The RHINO EP2134EC is a rugged speaker-microphone (also known as a remote speaker microphone / RSM) designed for use with Motorola APX/TRBO and XPR radios. It extends your radio’s speaker and mic to your shoulder or chest, enabling hands-free / easy-reach communication while on duty — ideal for law enforcement, security, EMS, or public safety professionals.
Main Features & Description
- High-quality speaker & microphone elements: The device delivers clear audio both when transmitting (microphone) and receiving (speaker), ensuring reliable voice communications in the field.
- Large Push-To-Talk (PTT) button: The PTT switch is prominently sized and easy to locate, even while wearing gloves or under stress.
- 360° reinforced metal clip: The clip is very durable and rotates a full 360°, allowing you to attach the mic to your vest, uniform, or gear in a comfortable orientation.
- 3.5 mm jack for external “listen-only” earpiece: The built-in 3.5 mm audio port lets you plug in an earpiece (such as a coiled acoustic tube) for discreet, private listening — useful in noisy environments or for tactical/stealth operations.
- Durable construction: According to broader Rhino mic specs (the 2100 series), these mics use Kevlar-reinforced polyurethane cable and impact-resistant poly-carbonate housing — built to stand up to rough handling and tough environments.
- “Easy-Connect” EC system with Guide Arrows: The EP2134EC includes Earphone Connection’s Easy-Connect (EC) adapter system. It features two guide arrows — one on the strain-relief cable connector and one on the EC adapter — designed to make radio connection quick, secure, and error-free. This reduces the chance of misalignment and ensures reliable contact.
Compatibility
The EP2134EC is designed to fit a variety of Motorola radios, specifically many in the APX/TRBO/XPR series. Models commonly listed as compatible include:
- Motorola: APX4000, APX6000, APX7000, APX7500, APX8000
- Motorola: XPR6300, XPR6350, XPR6500, XPR6550
Note: This microphone is not compatible with Motorola “N Series” radios (e.g., N70, N50, N30).
Use Case / Ideal For
- Law enforcement officers, first responders, EMS, fire, security — anytime you need reliable, hands-free radio comms.
- Situations where you need quick, secure radio connection (thanks to the Easy-Connect system).
- Environments with high noise, or where private listening is important (use with earpiece).
- Users who want a rugged, durable speaker mic that can withstand daily wear and tear.
What we know — Features & Compatibility
- Speaker + Microphone: Provides a built-in speaker and mic for two-way radios — supports clear audio when transmitting and receiving.
- Push-To-Talk (PTT) button: Large, easy-to-find PTT switch — usable even while wearing gloves or in stressful/low-visibility conditions.
- 3.5 mm audio jack: There’s a 3.5 mm “listen-only” earpiece port so you can plug in an external earpiece (e.g. acoustic tube or standard earpiece) for private listening.
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Durable, tactical-ready build:
- Reinforced metal clip that rotates 360° — allows flexible mounting on uniform, vest, belt, or gear.
- Compact, rugged speaker–mic housing designed for field / tactical / public-safety use.
Radio compatibility: According to vendor lists, it supports many models in the Motorola “APX / XPR / TRBO” / “APX NEXT” series — e.g. APX4000, APX6000 (and variants), APX7000, APX8000; XPR6300 / XPR6350 / XPR6500 / XPR6550 (plus other XPR series variants) are listed.
Not compatible with Motorola “N Series” radios (e.g. N70, N50, N30) per vendor notes.
What is Not Publicly Specified (or Hard to Find)
- I was unable to locate any verified documentation giving exact cable length, weight of the speaker-mic unit, or speaker / microphone sensitivity / decibel rating.
- There is no published spec sheet showing metrics such as SPL (speaker loudness), mic sensitivity (dB), or IP rating (water/dust resistance) for this model.
- The connector pinout / wiring diagram isn’t in publicly accessible vendor pages — although the “Easy-Connect” adapter helps manage alignment.
- I found no clear spec guarantee that this mic will work with every variant of each compatible radio (some vendors caution that “not all radio makes & models include the EC Easy-Connect feature at this time”).
What This Means in Practice
- The Rhino EP2134EC is built for field / tactical / public-safety use: rugged, easy to mount, and able to support an earpiece for discreet listening — ideal for officers, security personnel, EMS, etc.
- Because some of the “hard” specs (cable length, loudness, weight) aren’t public, you might consider this more a “field-tested commercial product” rather than a guaranteed-spec device. For critical deployments, you may want to test it in your own environment (vest, radio model, noise conditions) to ensure performance.
- The Quick-Release “Easy-Connect” helps with fast attachment/detachment — convenient if you swap radios or need to remove the mic quickly.
- External earpiece (via 3.5 mm jack) gives flexibility: you can operate “open-mic” style or use discreet earpiece depending on need.














