Eartec UPSST3 3-Person HUB Intercom System

Reliable Full Duplex Communication for Mobile Teams
The Eartec UPSST3 is a complete 3-person wireless intercom system built to deliver hands-free, full duplex communication for fast-paced, on-location environments. Designed for teams that require clear, real-time dialogue while maintaining full mobility, this system is ideal for broadcast crews, theater techs, production teams, and event professionals. The system includes one HUB Mini base station, three UltraPAK beltpack transceivers, three SST-style headsets, three rechargeable batteries, an 8-port charger, and a rugged soft-sided carrying case.

Flexible HUB Mini Base Station with Belt-Wearable Design
At the core of the system is the HUB Mini base station, which serves as a wireless communication hub supporting up to eight users. It operates on license-free DECT technology and provides a range of up to 1,000 feet line-of-sight. The HUB can either be clipped to a belt for maximum mobility or set down in a central location. It features dual communication channels and runs on either a rechargeable LiPo battery or standard AC power, offering versatile deployment in the field.

Compact UltraPAK Beltpacks with DECT Technology
UltraPAK beltpacks are lightweight, compact digital transceivers weighing just 2.5 ounces. Their ergonomic design makes them comfortable for all-day use, and they feature intuitive controls including volume adjustment, a microphone mute button, and an LED status light. Each unit leverages DECT wireless technology to enable simultaneous talking, ensuring continuous two-way communication without interference or lag—perfect for coordinating cues, cuesheets, or critical calls in busy environments.

Discreet SST Headsets for Clear Audio Monitoring
The SST (Secret Service Type) headsets provide discreet yet effective communication thanks to their clear, flexible audio tube and in-ear earbud design. These single-ear headsets are ideal for users who need to stay connected while maintaining a low profile, such as instructors, directors, or stage managers. The dual 2.5mm and 3.5mm plugs make them compatible with the UltraPAK beltpacks, and the included 3' cable offers ample freedom of movement during use.

Rechargeable Batteries with Quick-Swap and Multi-Charger
Three rechargeable lithium batteries power the beltpacks and HUB, delivering up to six hours of talk time per charge. The external 8-port multi-charger ensures that your team always has fully charged batteries on hand. Each battery charges in about three hours and features LED indicators that clearly show charging status, allowing for fast battery swaps between tasks and continuous communication without downtime.

Durable Case for Transport and Storage
To safeguard all system components, the UPSST3 includes a medium-sized soft-sided case made from waterproof nylon. The interior features organized compartments to store headsets, beltpacks, the charger, and spare batteries. A dedicated pocket with a hook-and-loop fastener secures your charging accessories. The case also includes a sturdy molded plastic handle for easy carrying to and from job sites.

A Complete Wireless Solution for On-the-Go Communication
With everything you need in one compact package, the Eartec UPSST3 is built for efficiency and portability. Whether you’re managing a live production, conducting training, or running a sports event, this full duplex intercom system ensures your team stays in sync. It’s plug-and-play, lightweight, and scalable, making it a go-to choice for any crew that values reliable communication in active environments.