The DX300 wireless headset system provides secure, two-way, hands-free conversation between football coaches to improve sideline and press box communication. Superior digital sound clarity ensures that coaches' instructions are heard above the crowd noise and general sideline confusion. The DX300 sets up in minutes, with no special procedures or complex antennas. It's easily expanded from a basic five-coach system to accommodate a staff of up to 20. Emmy Award-winning HME has been innovating for more than 35 years.