Samson AirLine 77 Wireless System Fitness Headset - Frequency K4 (479.100 MHz)

Portable: The AH7 eliminates these extra components that would be especially cumbersome for a fitness instructor and puts everything you need neatly and comfortably around your head 8 Hours Battery Life: The transmitter operates for up to eight hours straight on a single AAA battery Comfortable Headset: The AH7 Headset Transmitter is mounted to a lightweight, adjustable headset that fits comfortably around your ears and the back of your head, even though those days when you're teaching back-to-back classes for hours on end Water-Resistant Microphone: The headset also features the Samson Qe condenser microphone, whose sweat-resistant capsule prevents corrosion from prolonged exposure to moisture Pickup Pattern: In addition, the mic's bidirectional pickup pattern reduces background noise, minimizes feedback problems, and effectively rejects signals not originating directly in front of the mic capsule