Eartec UPMON4 4-Person Full Duplex Wireless Intercom

Four-Person Full Duplex Wireless Intercom System for Hands-Free Coordination
The Eartec UPMON4 is a professional-grade wireless headset system built for small teams who need real-time communication with complete mobility. This package includes one HUB Mini base station, four UltraPAK belt packs, and four dual-ear Monarch headsets, giving your crew crystal-clear, hands-free full duplex audio over a quarter-mile range. Perfect for live event production, construction sites, camera crews, and industrial operations, this system lets your team talk without limits or interruption.

Lightweight UltraPAK Belt Packs Deliver Reliable Mobile Performance
UltraPAK belt packs are compact, comfortable, and engineered for continuous use on the move. Each pack operates on the DECT 1.9 GHz band, offering dependable wireless transmission with minimal interference. Weighing just 2.5 ounces, they feature an easy-access volume control, a quick-mute button, and LED status indicators. The packs connect wirelessly to the HUB and interface with Monarch headsets for seamless crew communication.

Monarch Headsets Are Tough, Low-Profile, and Designed for Industrial Use
Eartec Monarch headsets are constructed from impact-resistant PBT polymer—the same material used in automotive bumpers. Their dual-ear design provides consistent voice clarity while maintaining situational awareness. The on-ear cushions and thin backband provide a secure, lightweight fit for long shifts or demanding environments. Originally built for commercial voice recognition systems, Monarch headsets are optimized for voice accuracy and rugged reliability.

HUB Mini Base Station Powers Communication and Team Expansion
The HUB Mini serves as the heart of the UPMON4 system, connecting up to eight users wirelessly with one additional wired port. It supports full duplex operation and uses DECT protocol to maintain audio clarity across distances up to 1/4 mile. The HUB can be worn on the belt or placed in a central location. Dual power options—rechargeable lithium battery and AC adapter—offer versatility for use in both mobile and stationary setups.

Battery-Powered Performance Keeps Your System Running All Day
Included with the system are five rechargeable lithium batteries, an 8-port charger, and a medium soft-sided case. All UltraPAK units and the HUB run on these external batteries, allowing for quick hot-swaps without halting operations. The 8-bay charger features LED indicators that display each battery’s status, and the batteries typically recharge within 3 hours—keeping your team powered and ready with minimal downtime.

No FCC License Required and Ready for Instant Deployment
Operating on the license-free DECT band, the UPMON4 system is plug-and-play and requires no special authorization or configuration. It’s easy to set up, quick to charge, and even easier to scale. Whether you’re managing a film crew, coordinating a concert production, or working in heavy industry, this wireless intercom system is engineered to simplify communication without slowing down your workflow.