A20-HH Control 0,
A20-HH Control 0 with no external physical controls but a multicolor status/audio level LED.
Customize your control. Sound Devices has made it easy to not only set commands on the A20-HH microphone remotely via NexLink®, but also change the physical controls on the mic, simply by swapping out the A20-HH Control Ring, giving you maximum flexibility for your applications.