The boya by-bm3030 is a supercardioid condenser directional microphone, which is suitable for general sound recording, for example on location. the by-bm3030 is compatible with slrs, camcorders and audio recorders. for reliable sound, this directional microphone is equipped with a built-in shock absorber. this keeps unnecessary vibrations to a minimum. the wind filter reduces wind noise. Technical details by-bm3030 You attach the directional microphone to your camera using the 1/4" female threaded connection or coldshoe. using the supplied 3.5 mm cable, you can connect your camera to the microphone. the by-bm3030 can be switched on with the on/off button, after which the microphone is immediately ready for use. with the indicator light you can see if the microphone is switched on. the by-bm3030 is powered by two aa batteries. the batteries can last up to 150 hours. a built-in headphone plug makes it possible to listen to the recording live. Usage by-bm3030 The by-bm3030 records calls, meetings, presentations and performances in high quality. the by-bm3030 is universally applicable, for use with cameras.