Samson's breakthrough micro circuitry allows the AH1 headset to operate on a tiny triple-A battery with 14-hours of life. Plus, AirLine transmitters give you great sound and reliable wireless reception over long ranges, wherever you use it. And UHF (Ultra High Frequency) means your wireless system is operating on a much clearer frequency band with less interference. AirLine 77 is Samson’s newest version of the AirLine series that features the first micro-technology transmitters in the industry. Traditional wireless systems consist of belt-packs and wires that hinder the performer. With AirLine, you get a true wireless system because there are no belt-packs and no cables, allowing the user complete freedom. The AirLine headset transmitters feature the Samson QE Fitness microphone elements. The QE headsets were designed to go around the back of your head rather than over the top. This allows the transmitter to be attached directly to the headband, out of the way and completely unobtrusive, while being comfortable and secure during performances or exercise routines. All of the AirLine transmitters operate on inexpensive and lightweight AAA batteries that offer 14 hours of operation on a single battery.
Please note: you must know your frequency or channel of your receiver to "match" your frequency.