• Sniper viewfinder with X2 magnification• Double modulation (SL-QDM/QDP only)• High power quad beam (SL-QDM/QDP only)• Beam power control selector (SL-QDM/QDP only)• A.T.P.C.-Automatic transmit power control (SL-QDM only)• I.A.S.C.- Integrated alignment status communication (SL-QDM only)• Upper/Lower beam selection button (SL-QDM/QDP only)• Optional beam Alignment Unit (BAU-4) is available