Yellowtec YT3350 m!ka 5/8" Mic Adapter w/ Dual Color OnAir Indicator MKII for On Air Mic ArmSlightly bigger, m! ka's new On Air indicator provides even better recognition but at the same time will not glare at short distance. For existing users of previous m! ka On Air Mic Arms we provide a particularly customer friendly solution to update existing On Air arms: By swapping only the joint instead of the whole boom, you have the option to easily upgrade your existing m! ka On Air arm with impeccable dual color CleanVision lighting