Recording professional audio with your iPhone or Android is not easy without the right tools. The Saramonic SmartMixer is designed to help your cause. This is a professional recording rig for your smartphone. It has two condenser microphones, a video stabilizing grip, two 3.5mm stereo mic inputs, one mini-XLR input, and a headphone monitoring jack.
The Saramonic SmartMixer comes with all the necessary mounts and connectors for your recording tools. It has a phantom power switch and an accessory shoe, for video lights and other gear. It is available for under $150 at this time.[where to get it]