Samson AirLine 88x AH8 Fitness Headset system offers true wireless freedom without the inconvenience of a beltpack 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.