COMPACT If default camera of your smartphone do not support the mic, you need to download open camera app and select external mic in app settings PLUGPLAY No batteries or drivers needed to work with i-Phone, smartphone, tablet. Tightly plug the jack, start recording your voice, unplug to listen Note: If your phone default camera do not support the mic, yoursquo;ll have to download ldquo;open camerardquo; app from play store or app store Go to open camerarsquo;s settings gt;gt; video settings gt;gt; audio source gt;gt; select external mic Windows smartphone and clip on to your shirt. Noise may happen when plugging mic into camera in auto volume mode, just decrease volume and it will eliminate noise. Please download OPEN CAMERA or PROMOVIE when recording video on ANDROID With the help of 78 inches long cord, it makes the podcasting at a distance with your mobile much easier and easy clip on your tie or shirt collar for sound recording because of sturdy metal clip