Nikon Wireless Remote Controller WR-R11a/WR-T10 Set (WRR11aset) From Japan
About Importer's Obligation. Not compatible with the D1, D1H, D1X, D200, D90, COOLPIX A, COOLPIX P7800, COOLPIX P7700, COOLPIX P1000, or COOLPIX P950. Also not compatible with the D100 when the MB-D100 is attached.