The Periscope | Scope Labs | A New Sound is Born! The World's First Ever Microphone With a Built-in Compressor is here! | By Scope Labs | Facebook
Amazon.com: PERISCOPE-MIC-1 - Periscope compatible Professional Omnidirectional lapel microphone with 1 meter cable, clip and windscreen for iPhone/Smartphones/Comptuers with 4 pole connectors : Musical Instruments
Earthworks P30/C Cardioid Periscope Microphone
A first look at the Periscope Microphone - YouTube