In addition, these can be used as remote camera shutter release remotely by means of a cable supplied with. Beware though, when ordering, to not go wrong in the kit with the reference of the cable. I made that mistake, I ordered the set with cable N3, while for my D80, you need a N2. I no longer find the right cable has qqpart
FOR INFORMATION:
RF-603 C1: CANON 60D / 600D / 650D / 550D / 1000D / 450D / 400D / 350D / 300D
PENTAX K20D / K200D / K10D / K100D
Samsung GX-20 / GX-10
RF-603 C3: Canon 7D, 1D, 1Ds, 5D, 5D II 50D / 40D / 30D / 20D / 10D
RF-603 N1: NIKON D800 / D3X / D3 // D2X / D2H / D1H / D1X / D700 / D300 / D200 / D100
RF-603 N2: NIKON D80 / D70S
RF-603 N3: NIKON D600 / D90 / D5000 / D5100 / D3100