The Eartec 3-User SC-1000 Two-Way Radio with Ultra Single Inline PTT Headsets is a complete system that consists of 3 of the company's Scrambler SC-1000 UHF radio transceivers, each with its own Ultra Single Inline headset with Push-to-Talk activation.

The SC-1000 system allows for crystal clear voice communication to production teams on the move. This wireless transmitter operates in the simplex mode, which means that when one person in a group transmits, the message is received by everyone. An unlimited number of transceivers can operate at the same frequency and the system can also be utilized as a dual-channel intercom with switching.

The transceiver features a full watt of transmission power at a distance of up to 1 mile (1.61 km). It utilizes UHF high-band frequencies that can penetrate concrete or steel surfaces. This makes the SC-1000 a cost-effective sound solution for schools, churches, community theatres, or any on-location venue where users need to communicate between buildings or through walls. This unit operates with a rechargeable NiCad battery. It also comes with a military belt clip for convenient carrying.

The Ultra Single Inline Headset with Push-to-Talk activation is a versatile headset accessory for two-way radio use. This headset allows users to wear their radios clipped to their belts and communicate through the headset. The comfortable full-ear-cup features a unique heptagonal design that covers the ear naturally and completely. Deluxe ear cushions are not only wide and soft but are also slightly thicker at the bottom and rear. Together, these ergo-formed shapers are the reasons that make this headset comfortable to wear. It also includes an inline Push-to-Talk button that is worn on the belt or clipped to the user's clothing.