The SG-MK21S Audio Rack Mount Kit comes with a pair of snap-on antenna extension cables and mounting holes to position the antennas at the front of your audio rack. However, the D-332 series—comprising the dual handheld set (D-332HH), dual bodypack set (D-332BB), and handheld plus bodypack set (D-332HB)—features fixed antennas.
While you can still use the SG-MK21S kit with these models, the antenna extension feature will not be functional due to the fixed antenna design.
