A cardioid microphone has the most sensitivity at the front and is least sensitive at the back. This isolates it from unwanted ambient sounds and gives much more resistance to feedback than omnidirectional microphones. This makes a cardioid microphone particularly suitable for loud stages
Features:

FULLY PLUG in the microphone into anti-shock mount

PLUG the microphone with anti-shock mount into the smartphone clamp or DSLR

Screw the anti-shock mount on the smartphone clamp or DSLR by turning clockwise

Screw the mini tripod to the smartphone clamp or DSLR by turning clockwise