Yongnuo Wireless Shutter Release YN-126 C1 suitable for Canon 1000D 550D 500D 450D 400D 600D 350D 300D G10 G11 G12 Pentax K20D K200D K10D K100D Samsung Gx-20 Gx-10 Wireless Shutter Release YN-126 Packing: 1 x transmitter 1 x receiver 1 x user manual 1 x CR123A battery