I bought the radio trigger for my new Canon EOS 5D Mk III and have tested it today ausgibig. All functions have work as expected. Above all, I find handy that you can use the receiver without remote control, if you will only briefly prevent camera shake by pressing the shutter button. How long will the batteries, I have (arrived today Product) naturally have not tried, but since both use remote control and receiver AAA batery and I possess accus in this design, I expect no problems here. The product does not use this button cells, I feel as one of the main recommendation features. The range is at least 30 meters through three walls.
