The C555L headworn microphone from AKG is rugged, extremely easy to use, and offers outstanding price and performance for a headset mic. The C 555 L is the ideal microphone for any handsfree application including gymnastics instruction, presentations, or onstage performance. The C 555 L rests securely and comfortably on the head, and can be attached to the left or right side of the behind-the-neck headband as desired. A transducer shock mount reduces handling noise to a minimum. The moisture shield prevents perspiration from penetrating into the transducer element, ensuring a high degree of humidity protection for the microphone. This headworn mic is the only version available and can be used with the B 29 L battery power supply, AKG WMS Series bodypack transmitters, or the MPA V L adapter for external phantom powering (Not included). Important! Using any power supply other than those recommended by AKG may damage your microphone and will void the warranty!