Enables the user to add and trigger multiple flash guns and studio lights. Compatible with: Canon: EOS-1D / EOS-1DMarkII / EOS-1DMarkIIN / EOS-1DMark III / EOS- 1DMark IV / EOS-1DC / EOS-1DS / EOS-1DSMark II / EOS-1DSMarkIII / EOS-1DX / EOS-1DXMark II / EOS-1DXMarkIII / EOS-5D / EOS-5DMark II / EOS-5DMark III / EOS-5DMarkIV / EOS-5DS / EOS-5DSR / EOS-6D / EOS-6DMarkII / EOS-7D / EOS-7DMark II / EOS-10D / EOS-20D / EOS-20DS / EOS-30D / EOS-40D / EOS-50D / EOS-60D / EOS-70D / EOS-77D / EOS-80D / EOS-90D / EOS-100D / EOS-200D / EOS-250D / EOS-300D / EOS-350D / EOS 400D / EOS-450D / EOS-500D / EOS-550D / EOS-600D / EOS-650D / EOS-700D / EOS 750D / EOS-760D / EOS-800D / EOS-850D / EOS-1000D / EOS-1100D / EOS-1200D / EOS-1300D / EOS-2000D / G1X / G1XMarkII / G1XMark III / G3X / G5X / G10 / G11 / G12 / G15 / G16 / EOS-M5 /EOS-M6 /EOS-M6MarkII / EOS-R / EOS-Ra / EOS- RP / EOS-R3 / EOS-R5 / EOS-R6 Pentax: K1 / K1MarkII / K3 / K3MarkII / K-5 / K-5MarkII / K-5MarkIIS / K-7 / K-10D / K-20D / K-30 / K-50 / K-100D / K-110D / K-200 / K-500 / 645D Samsung: GX-1L / GX-1S / GX10 / GX-20 / NX-10 / NX-11