I just received the Echo box for my dog. Unpack the case. Apply the “reference telephone” method. (see FAQ “Checking sound emissions and “Reference Telephone” method”) Attach Echo to the dog’s collar by passing the collar through the straps and stabilizer. Ensure optimal positioning of Echo at the dog’s chest. Check that the box does not dip into the water bowl when the dog drinks. Press the operating mode selection button to bring the unit out of pause mode.