Omnidirectional, cardioid and supercardioid. It determines the sensitivity of the microphone to sound relative to the direction or angle, i.e. shows how well the microphone "hears" sound from different sides
No higher than 32 Ohms for smartphone headphones. When using a good player or amplifier, it can be up to 100 Ohms. For stationary models you should coordinate the impedance with the amplifier power
Necessary for condenser microphones
Brand: Sennheiser
: 46
Connectors: 3.5mm jack
Audio signal format: mono
Brand: RODE
Audio signal format: stereo
: 43
Capsule diameter, mm: 12.7
Capsule diameter, mm: 12
Connectors: XLR
Capsule diameter, mm: 21
Capsule diameter, mm: 13.97