Samson's AirLine 77 headset is designed to go around the back of your head rather than over the top. This allows the AH1 transmitter to be attached directly to the headband, out of the way and completely unobtrusive, while being comfortable and secure. This is ideal for group fitness instructors who need a durable headset that will remain in place despite repetitious movement. The transmitter offers 14 hours of operation on a single AAA battery. The headset also features Samson's Qe Fitness Microphone element, a unidirectional microphone with a cardioid pickup pattern that rejects feedback.

The core of the receiver system is the CR77 true-diversity half-rack UHF receiver. It's designed to work flawlessly with AirLine UHF transmitters. Featuring dual tuned, molded antennae, a front panel display with large multi-segment audio level and RF level LED meters, and a large rotary volume knob that allows easy adjustment of audio output, the CR77 takes all of the guesswork out making your wireless system perform.

Its synthesized PLL frequency control circuitry keeps the signal locked and true while the LED meters monitor the system's operation. The rear panel features balanced XLR and unbalanced 1/4-inch outputs allowing flexible connection options. In addition, two CR77 receivers can be rackmounted together in a single space rack adapter available as an added accessory.

The Samson AirLine 77 Headset System: Qe Fitness Headset and CR77 UHF Receiver, AC adapter, 1/4-inch to 1/4-inch cable, user manual.