Just wrote my Amazon review on this product.
"I have a D800 that works flawlessly until I put this RF shutter release on. It works for a few minutes and then eventually the whole system locks up. I need to remove the battery and turn off the receiver to get it back. If I just remove the battery without turning off the receiver then my top LCD just blinks Err. When it works it's great but the lock-ups would turn anyone off of this product. Go a different route. "
That's unfortunate as it looked promising.