Que-Com is a high-performance, economical party-line communications system*. It is ideal for audio/visual, educational, theatrical, video production, and sports applications. Que-Com also performs exceptionally well in noisy industrial and concert performance environments. This system features a wide frequency response and high audio output. Rugged, all-metal diecast beltpack with belt clip. The intercom provides an individual volume control and mic on/off switch for each station with a permanently attached, rugged, noise-isolating headset. Interconnects with standard mic cable. Que-Com is compatible with all Clear-Com systems. Also available with a single-ear headset - model SMQ-1. *Note: Complete system requires PK-7 Power Supply and at least 2 (SMQ-1 or DMQ-2) Headset Stations. These items are sold individually.