This product requires a AAA battery, which is not included.
This is a shoe-mounted shotgun microphone perfect for dSLRs or small video cameras. The integrated shockmount conveniently mounts the Sennheiser MKE 400 onto any camera accessory shoe while effectively suppressing handling and vibration noise. It has switchable ‘high/low’ sensitivity for long and short range pick-ups and is powered for up to 300 hours with a single AAA battery, which is not included. Frequency response range is 40-20,000 Hz.
Output is via a 3.5mm stereo plug (mini-headphone), compatible with most dSLRs and small video cameras.