The Boya BY-F8OD Omni-Directional Lavalier Microphone is an extremely suitable microphone for recording voice in videos. The sound is received omnidirectionally which means that sounds are received from all sides. This makes the BY-F8OD also suitable for videos or interviews in which the interviewee is moving. The sound is still well recorded when his / her head turns away. Due to its robust metal construction, the BY-F8OD can take a beating. The BY-F8OD works with an AA battery (not included).