Rode VideoMic Me Directional Mic for Smartphones it includes The Tool -

it includes The Tool - a GoPro thumb screw wrench that doubles as a bottle opener

connected to a 1/4"-20 camera thread

1x QuickClip

Simply slide the assembly into the hole of the stem and tighten the machine screw to create a tight fit

To prevent movement and equipment damage

Rode VideoMic Me Directional Mic for Smartphones it includes The Tool -The VideoMic Me is a compact and lightweight, high quality directional microphone with that connects directly to the iPhone TRRS microphone headphone socket. Its flexible mounting bracket accommodates a wide range of smartphones and allows the microphone to be fitted for primary camera or front camera ('selfie') use. A 3. 5mm headphone jack on the rear allows for play through of audio while recording (app dependent) as well as easy playback of your