This is the Clansman Gold Top ANR Active Noise Reduction version of the Crew Box 2 Set. The CB2 is the standard Clansman Harness Crew Box. It gives the crew member access through the harness to either of the two radios as a working set and simultaneously to the other for monitoring purposes. Volume controls are provided for both the working set and the monitor set. Supplied in good working condition, Grade 2. NSN: 5895-99-477-3716.