Eartec ETXC-4 ComStar XT Full Duplex Wireless System

Four-Person Wireless Intercom System for Hands-Free Coordination
The Eartec ETXC-4 is a complete wireless headset solution built for teams who need to communicate in real time while staying mobile and hands-free. This package includes four XTreme all-in-one headsets and one Comstar Com-Center base station. It’s designed for production crews, construction teams, stage operators, and industrial users who require uninterrupted, full duplex voice communication in high-activity settings.

Full Duplex Communication With No Voice Delay or Activation Needed
The ETXC-4 system allows all users to speak and listen simultaneously—just like a standard phone conversation—without pressing buttons or activating the mic. There is no voice-activated lag, which means commands and responses happen in real time. This makes it ideal for time-sensitive coordination, especially in environments with moving gear, fast-paced transitions, or critical instructions.

All-in-One XTreme Headsets With Built-In Radios and Batteries
Each XTreme headset is fully self-contained, integrating the wireless transceiver, antenna, and rechargeable battery into the ear cup. There are no belt packs or dangling wires, resulting in a streamlined fit and easy setup. The rugged construction features a stainless steel back band and adjustable over-head support strap, designed for compatibility with hard hats, bump caps, and protective gear.

Comstar Com-Center Provides Reliable Wireless Range and Expandability
At the core of the system is the Comstar Com-Center, a centralized base station that manages all wireless headset connections. It supports up to eight users in full duplex mode and can be expanded to 16 users with additional headsets and optional interfaces. The system offers an operating range of up to 800 yards, making it perfect for large venues, multi-zone job sites, and broadcast environments.

Comfortable Headset Design for Extended Wear in Active Environments
XTreme headsets are engineered for comfort during long workdays. The double-ear design blocks out ambient noise, while padded ear cushions and a flexible boom mic provide clear communication and a secure fit. Integrated controls allow users to adjust volume and mute the mic directly from the headset without needing external equipment.

Portable and License-Free for Global Operation
The entire system is fully portable and requires no license to operate. The Com-Center can run on AC power or its included rechargeable battery, enabling field deployment in remote locations. Whether you’re coordinating an event, managing a tech crew, or operating in industrial spaces, the ETXC-4 ensures seamless communication with minimal setup.

Customizable to Fit Your Team’s Needs
Choose any combination of XTreme or other compatible wireless headsets to tailor the system for your crew. The modular architecture allows for flexible configurations that grow with your needs. This makes the ETXC-4 a reliable long-term investment for evolving teams and organizations.