A two-way radio on a loud construction site or factory floor only helps when the message reaches your ear. Machinery and movement can turn a clear instruction into a missed call. The Retevis EES048 is an industrial radio headset built for that setting. It is a wired, 2.5mm single-pin in-ear earpiece for RB48-series radios, with an IP54 rating, a Kevlar-reinforced coiled cable, and in-line PTT.
The EES048 is a one-wire, in-ear earpiece for two-way radios, or walkie-talkies, not a consumer headphone. The single cable runs from the radio's 2.5mm audio jack to an in-line control unit, then to the earpiece. The control unit holds a microphone, a Push-to-Talk button, and volume up/down buttons. A lapel clip keeps the unit on your shirt or vest, so the microphone stays near your mouth and the button stays within thumb reach.
It is built for the RB48 family. That detail matters when you buy an industrial headset: the 2.5mm single-pin plug is made for these radios, not a two-pin connector, so it seats directly with no adapter.
An industrial radio headset has to do two things in a noisy plant: keep the radio's audio clear at your ear, and carry your voice back to the team. The EES048 does this in two parts. The earpiece seals inside the ear canal, which blocks some background noise and directs the radio's sound straight to your ear. The in-line microphone sits near your mouth, so you can speak without lifting the radio.
Noise reduction is handled by the radio, not the earpiece. The EES048 is a wired unit and does not add active noise cancellation. On RB48-series radios with built-in noise reduction, the radio filters the ambient sound and the earpiece delivers the clear result. For clear voice in heavy noise, pair this headset with a radio that offers that feature.
The EES048 is rated to IP54. The first digit covers dust, meaning a limited amount of dust can enter without stopping the unit from working. The second digit covers splashing water from any direction. In practice, it stands up to a dusty work area, rain spray, and sweat. It is not waterproof, and it should not be submerged or worn while showering or swimming.
The cable is the part that fails first on most cheap earpieces, so the EES048 is built with Kevlar. The cord carries high-strength fiber inside and a Kevlar braid on the outside, which raises resistance to pulls and abrasion. Kevlar is the same fiber used in professional radio accessories for exactly this reason.
The cable is also coiled. A spring cord stretches to give you room to move, then retracts, so it does not hang loose to catch on rebar, ladders, or equipment.
The in-line PTT button is the main way to talk. Press it, speak, and release. The volume up/down buttons sit in the same unit, so you can raise or lower the sound without touching the radio.
VOX is a radio setting that transmits when you speak, which leaves your hands free. The EES048 supports VOX when VOX is enabled on the host radio. On the RB48, RB648, RB48 Plus, and RB648 Plus, turn on VOX on the radio and the earpiece works hands-free. On the RB48 Pro, RB648 Pro, RB48A, RB648A, and RB48D, use the in-line PTT. In high noise, PTT is the more reliable choice, because an open microphone can pick up machine sound.
The in-ear earpiece stays clear of head protection. The earpiece and ear hook sit inside the ear rather than over the head, so a hard hat, safety glasses, or a cap can go on without conflict. That makes it a practical construction headset for crews who already wear head and eye protection.
Fit drives both comfort and noise isolation, so the EES048 ships with a fit kit. You get medium and large round silicone ear tips, medium and large triple-flange tips, and a pair of ear hooks. Start with the medium round tip, then move up a size or switch to the triple-flange tip for a tighter seal. The right fit keeps the earpiece in place during movement and helps block background sound.
The EES048 is built for jobs where hands are busy and the background is loud. On construction sites, it handles dust, climbing, and hard-hat wear. In plants and factories, it keeps instructions clear near running machinery. In warehouses, it stays out of the way while workers walk, pick, and climb. Security, retail, hotel, and restaurant teams use it for steady, discreet coordination across a full shift. The headset comes in a black-and-yellow finish that matches the RB48 line.
The EES048 uses a 2.5mm single-pin connector and is designed for these Retevis radios:
This is the matching 2.5mm single-pin headset for RB48 radios. Before ordering, check the audio jack on the radio and confirm the model above.
Each EES048 package includes the earpiece with its coiled cable and in-line PTT/volume control, medium and large round silicone tips, medium and large triple-flange tips, a pair of ear hooks, and a PE storage bag. It is a wired, passive earpiece, so it needs no battery and no charging cable.
Construction, manufacturing, warehousing, and large hospitality teams share one basic need: hear the instruction the first time, and answer without stopping the work. The EES048 is the small, durable part each team member wears, an in-ear earpiece and an in-line control unit built for the full shift.
View the Retevis EES048 industrial headset for full details and current pricing, and browse the RB48-series radios it pairs with. Multi-site teams and bulk buyers can contact the Retevis business team for configuration help.
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