ETMY ET-ER308 Acoustic Tube Earpiece — Discreet, Clear, and Built for All-Day Wear

Stay connected without missing a beat. The ET-ER308 Single-Listen Acoustic Tube Earpiece delivers crisp, clear audio directly to your ear through a detachable air tube — keeping communication private, hands-free, and professional in any environment.

Designed with a 3.5mm listen-only plug, the ET-ER308 is compatible with Motorola CP200, CP200 XLS, GP300, EP450, and PR400 two-way radios, as well as MP3 players and other 3.5mm audio devices.

Key Features

• Detachable Acoustic Air Tube — Hygienic and replaceable; the hollow air tube transmits sound without electronic components near your ear, reducing heat and discomfort during extended wear
• Retractable Coiled Spring Cable — Stretches to reach your radio on a belt or shoulder mic, then retracts neatly to prevent tangling — perfect for active professionals
• Compact & Portable Storage — Coiled design collapses small for easy pocket or pouch storage when off duty
• Listen-Only Design — Ideal for monitoring radio traffic discreetly without a PTT button in the way
• Universal 3.5mm Jack — Works with radios, MP3 players, and any device with a standard 3.5mm audio output
• Comfortable Eartip — Soft, ergonomic eartip fits securely for all-day wear without fatigue

Compatible with Motorola Models

•  CP200 / CP200 XLS
•  GP300
•  EP450
•  PR400

Compatible with icom models：

• HM-159LA

• IC-V86, IC-T10 specker microphone

• IC-F3003
• MP3 players and other 3.5mm audio devices

Ideal Use Cases

• 🏗️ Construction & Industrial — Hear radio calls clearly on loud job sites without removing PPE
• 🍽️ Restaurant & F&B — Silent, unobtrusive communication for floor managers and service staff
• ⛺ Camping & Outdoor Events — Lightweight monitoring during group activities and expeditions
  

The ET-ER308 is the go-to listen-only earpiece for professionals who need reliable, comfortable, and discreet radio monitoring — shift after shift.