TECH RACE my2020. Professional universal intercom control box. Aluminum case against electromagnetic interferences. Fixable on roll bar or dashboard. Separated volume setting knobs. RCA audio output for camera car connection. Powered by 9V PP3 or 12V battery (not supplied) or by car battery (through JA/834 cable). Sets automatically on by connecting the intercom to the helmet. High performance electronics and electronic interferences reduction. With female Nexus plugs to connect old OMP or other brands’ helmets which feature male Nexus plug intercom kit (such as Peltor or Bell). . TWO JA/882 ‘PLUG&PLAY’ ADAPTORS INCLUDED IN THE BOX ALLOW TO CONNECT ALSO ALL HELMETS FEATURING A FEMALE NEXUS PLUG INTERCOM KIT (OMP J-R SC798, STILO HELMETS).