Samson Airline 77 AH7 Fitness Headset (K5 band: 479.100 MHz) Wireless headset microphone system designed for trainers and fitness instructors at Crutchfield
Samson Concert 77 UHF Diversity Handheld Wireless System
Rack-mountable Samson AirLine 99 System with Qe Fitness Microphone — AV Now Fitness Sound