Samson Airline 88x AH8 Fitness Headset system offers true wireless freedom without the inconvenience of a belt pack or cable. The innovative and lightweight AH8 micro transmitter headset microphone fits securely and comfortably on your head, even for active performers. Featuring the unidirectional AE50X mic capsule, marine-grade stainless steel gooseneck and water resistant design, the AH8 delivers superior sound and reliability. A rechargeable lithium-ion battery delivers up to eight hours of use. The rack mountable CR88x receiver uses one-touch scanning to automatically select the clearest channel available. True Diversity design minimizes dropouts, while tone-key technology prevents unwanted noise when your transmitter is out of range.