Meet the Rode VideoMicro: a compact directional microphone that pairs with your camera or smartphone to let you capture high quality audio everywhere you go. The Video Micro focuses on the audio in front of the camera. It has an aluminum body and offers a high level of RF rejection. The microphone comes with a Rycote Lyre shock mount.
The VideoMicro does not require a battery. It is lightweight and portable. It is available for under $60 at this time.