CowboyStudio JMA Radio Frequency Wireless Shutter for Canon EOS 5D, 1D, 1D Mark II, 1Ds, 1Ds Mark II, 10D, 20D, 30D, 40D, 60D, Compatible Canon RS-80N3 Fully compatible to: Canon EOS 5D, 1D, 1D Mark II, 1Ds, 1Ds Mark II, 10D, 20D, 30D, 40D, 60D, 1V 100 M range; does not require line-of-sight release 3-mode operation for shutter, sleep, and lock; locking function for bulb exposure Supports unique coding for anti-interference and avoiding wrong operation With rechargeable lithium battery and charging device that has LED indicator