LENSGO LYM-DMM1 is a Universal Phone Camera Microphone With Shock Mount Directional Condenser Cardioid Microphone designed to improve audio quality compared to built-in microphones lt is powered by your device no need battery, plug in microphones with rubber shock mount to avoid the vibrations noise to effect the audio quality It can work with computer smartphone camera ,IOS and so on(if you need contact with iphone please prepare a iphone adapter to use it)