Description
Professional C-Style Earhook Earpiece with In-Line PTT & Microphone
Genuine Hytera lightweight 2-pin audio accessory featuring an ergonomic C-ring earhook, tactile Push-To-Talk button, and sensitive electret condenser microphone.
The Hytera EHM04-A (catalog part EHM04-A / EHM04) is an authentic original equipment manufacturer (OEM) commercial audio accessory designed for Hytera analog and digital portable two-way transceivers. Built with a comfortable C-style earloop and an integrated in-line microphone and Push-To-Talk (PTT) switch, this 1-wire headset provides reliable, discreet, and hands-ready voice communication. It allows personnel in hospitality, security, retail, education, and event operations to transmit and receive critical transmissions privately without removing the radio from their belt or uniform holster.
Engineered for full-shift comfort, the Hytera EHM04-A weighs just 28 grams and rests gently over the contour of the outer ear, eliminating ear canal fatigue and promoting hygiene in multi-user workplace environments. The flexible rubberized earloop adjusts easily to fit either the left or right ear, keeping the 32-ohm speaker positioned directly over the ear for clear reception in noisy facilities. The assembly terminates in Hytera’s heavy-duty 2-pin connector, complete with a knurled locking thumbscrew that fastens securely to the radio's side accessory port to prevent accidental disconnections. Operating under commercial FCC Licensing standards, the EHM04-A delivers crisp audio clarity across Hytera TC, BD, and PD series portable radios.
Key Features & Benefits
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Ergonomic C-Style Earloop: Flexible rubberized C-ring rests comfortably over the ear for shift-long wear without penetrating the ear canal.
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In-Line PTT & Electret Microphone: Sensitive omnidirectional microphone element captures natural speech while the tactile PTT button provides positive feedback even with gloved hands.
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Reversible Left/Right Wear: Symmetrical earhook design allows fast adjustment for comfortable use on either the left or right ear.
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Secure 2-Pin Screw-In Connector: Heavy-duty molded dual-pin connector features an integrated thumbscrew that locks firmly into the radio chassis to prevent accidental detachment.
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Lightweight 28g Profile: Featherweight build reduces neck and ear fatigue during long shifts and active movement.
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360-Degree Swivel Clothing Clip: Durable metal clip on the in-line PTT housing anchors the microphone at the optimal position on collars, lapels, or duty vests.
Specifications
| Attribute |
Details |
| Brand |
Hytera |
| Model / SKU |
EHM04-A / EHM04 |
| Product Type |
Conventional C-Style Earset with In-Line Mic & PTT |
| Wiring Configuration |
Streamlined 1-Wire Cable Assembly |
| Radio Connector |
Hytera Standard 2-Pin with Knurled Locking Thumbscrew |
| Wearing Style |
Over-the-Ear C-Style Earloop (Left or Right Ear) |
| Microphone Sensitivity |
-42 ± 3 dB @ 1 kHz (3.0 V, 2.2 kΩ; 0 dB = 1 V/Pa) |
| Speaker Rated Power |
20 mW (Rated) / 30 mW (Max) |
| Speaker Impedance |
32 Ω ± 15% @ 1 kHz |
| Speaker Frequency Response |
102 ± 4 dB @ 1 kHz at 10 mW |
| VOX Capability |
None (Manual PTT Operation) |
| Operating Temperature |
-20°C to +60°C (-4°F to +140°F) |
| Storage Temperature |
-40°C to +85°C (-40°F to +185°F) |
| Weight |
Approx. 0.06 lbs (28 g) |
| Color Finish |
Matte Black |
Compatibility
Compatible Hytera Portable Two-Way Radios
Recommended Accessories
Charging & Battery Hardware
Alternative Audio & Carrying Solutions
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Hytera SM50M1 Remote Speaker Microphone – IP54 rated shoulder microphone with 3.5mm audio earphone port for 2-pin radios.
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Hytera BC08 Heavy-Duty Belt Clip – Replacement spring-action belt clip for TC, BD, and PD series portables.
More Resources
Frequently Asked Questions
What does the "-A" suffix at the end of part number EHM04-A mean?
The "-A" suffix indicates the latest official manufacturing revision from Hytera. EHM04-A represents the newest production version of the base part number EHM04, featuring reinforced strain relief moldings and updated internal wiring while retaining identical acoustic performance and full backward compatibility across all compatible 2-pin radios.
Does the Hytera EHM04-A support VOX hands-free transmission?
No. The EHM04-A is designed for push-to-talk operation and does not feature an integrated VOX switch. If your operations require automatic voice-activated transmission, consider the Hytera EHM15-A (D-style) or EHM18-A (C-style with VOX).
Can this earpiece be worn on either ear?
Yes. The flexible C-shaped earhook pivots easily to allow comfortable, secure placement over either the left or right ear.
Does this earpiece insert into the ear canal?
No. The speaker sits against the outer ear rather than inside the canal. This makes the earpiece more comfortable for multi-hour shifts, allows users to hear ambient surroundings, and simplifies sanitization when accessories are shared among staff.
How does the connector secure to the radio?
The EHM04-A uses Hytera’s standard 2-pin accessory plug equipped with a knurled thumbscrew that threads directly into the radio chassis, ensuring the connector will not pull loose during active shifts.
Warranty
1-year manufacturer’s replacement warranty.
