How to connect an external Microphone to your Smartphone - YouTube
Amazon.com: Professional Wired Lavalier Lapel Clip On Microphone for iPhone and Android Smartphone or Camera Omnidirectional Tiny Shirt Mic for Recording with Clip-on Perfect for Vloggers and Bloggers : Musical Instruments
Can they spy on you through your smartphone microphone? - Panda Security Mediacenter
MVL - Lavalier Microphone for Smartphone or Tablet - Shure USA
Bower HD Microphone Kit Cold Shoe Smartphone Mount with Two 1/4 Tripod Threads - Walmart.com