Eartec UPMX4GS4 4-Person Full Duplex Wireless Intercom System

Compact Full Duplex Wireless Intercom System for Four Users
The Eartec UPMX4GS4 is a complete wireless intercom system built for four-person teams who need constant, hands-free communication while working. It includes one HUB Mini Base Station, four UltraPAK beltpack transceivers, four Max 4G Single Headsets, five rechargeable lithium batteries, an 8-port charger, and a padded soft-sided case. Whether you're coordinating production crews, managing stage operations, or directing technical staff, this kit provides clear, simultaneous talk communication with no delay or voice activation lag.

Flexible Communication That Moves With Your Crew
At the heart of the system is the HUB Mini Base Station, which supports up to 8 wireless users and operates in full duplex mode. Designed for mobility, the HUB can be worn on a belt or placed in a fixed position, allowing you to tailor its use to any environment. It uses Digital Enhanced Cordless Telecommunications (DECT) on the 1.9 GHz band to deliver interference-free communication within a 400-yard line-of-sight range. Dual power options—via rechargeable lithium battery or AC adapter—support all-day use whether you're on location or in a studio.

Lightweight UltraPAK Beltpacks for All-Day Comfort
UltraPAK beltpacks are compact and ergonomic, weighing just 2.5 oz. Their streamlined design makes them ideal for long shifts, and each pack includes a volume control, microphone mute button, and LED indicator. With a simple 2-pin headset connection, they are built to pair easily with Max 4G headsets and recharge externally for fast battery swaps between tasks.

Max 4G Single Headsets Offer Adjustable Comfort and Automatic Mic Muting
Each included Max 4G Single Headset features deluxe foam padding and an adjustable headband for secure, comfortable wear. The noise-canceling microphone is mounted on a boom that rotates 270°, and when the boom is flipped into the upright position, the system automatically mutes the mic—a convenient alternative to manual muting, especially when hands are occupied.

Keep Your Gear Organized and Ready to Go
To keep everything in order, the system includes a medium soft-side case with internal compartments. Built from waterproof nylon and fitted with a molded handle, it protects your headsets, chargers, and accessories during transport. The 8-bay multi-port charger allows multiple batteries to charge at once, with LED status indicators that switch from red to green when fully charged.