Wireless Remote Shutter Release Remote Switch Shutter C1R By JRFOTO 16 Channels with Working Distance of 30 Meters One (1) Remote Shutter Receiver 16 channels One (1) Alkaline Battery 23A 12V User Manual Original Packaging CANON EOS 1000D CANON EOS 450D CANON EOS 400D CANON EOS 350D CANON EOS 300D CANON EOS 300 CANON EOS 300V CANON EOS 50E CANON EOS 50 CANON EOS 33 CANON EOS 30 Pentax K110D/K100D/Gx-1L/Cs205 Remote Switch Shutter Contax 645/Nl/Nx/N/Digital/LA-50 Remote Switch Shutter Pentax *ist D/DS/DS2/DL/DL2/K10 Remote Switch Shutter