Samson AirLine AH7/QE-E3 Aerobic Transmitter

AirLine takes the concept of wireless to new heights with transmitters so small and lightweight, they are nearly invisible, providing a true wireless experience with no cables or beltpacks.
 

The Samson AirLine 77 AH7 Fitness Headset system is a wireless microphone solution designed to meet the specific demands of fitness instructors and active performers. With the unique AH7 micro transmitter mounted to a sweat-resistant Qe fitness headset microphone, you can free yourself completely from cables and beltpacks for a truly exhilarating and motivating experience.

Only transmitter - CH E3
Fitness headset with mounted micro transmitter (no beltpack or cable required)
Qe condenser microphone element with bidirectional pickup pattern
Sweat-resistant mic design for high-energy instructors/performers
Up to eight hours of battery life using single AAA battery
Power/Low battery LED indicator
Internal Power switch
Microphone Element: Qe condenser
Pickup Pattern: Bidirectional
Frequency Response: 50Hz–15kHz (±3.5dB)
RF Power: 5mW -4dB Min., +3dB Max.
Battery Life: 8 hours from single AAA battery