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
Audio signal format: mono
Brand: RODE
: 43
Capsule diameter, mm: 21
: 46
Connectors: XLR
Brand: Sennheiser
Connectors: 3.5mm jack
Capsule diameter, mm: 12.7
Capsule diameter, mm: 13.97
Capsule diameter, mm: 12
Audio signal format: stereo