The result is the world's smallest studio quality cardioid condenser microphone, with a linear frequency response from 40Hz to 20kHz (±2dB).
The 4021 has a side-mounted 5m cable which is suitable for situations where the microphone needs to be mounted directly onto the musical instrument, a small stand, or in the CXO4000 stereo holder.
This microphone is the perfect choice whenever high definition audio and insignificant size is important — unobtrusive live recordings or TV shows, for example.

The 4021 is a phantom powered omni condenser microphone using the same type of cartridge as the famous type 4011, but with a built-in ultra-small thick-film mounted FET-preamplifier.

The 4022 is the same as the 4021, but with a rear-mounted cable for situations where the microphone needs to be suspended or mounted on a stand.

The 4023 is the same as the 4021, but fitted with a standard LEMO-connector for for use with the elegant and flexible Flamingo Series floor stands.