Mistakes do happen, part of the real world experience.What counts in my book is how you make it RIGHT.I ordered the NADY UHF 4W-1KU Quad System that should have come with four (4)Lapel/lavalier MICs and Transmitters.But as you can see with in the attached image, what arrived is 2 LAVs and 2 Handhelds.Called up Amazon right away and as usual (in good form) initiated the return/refund processed.There was a packing slip in the box from 17Photo Electronics. For giggles I called them and told them my issue.My claim got escalated to a gentleman call AJ, who I bet is the owner.He checked his other stock and guess what, NADY screwed up, putting the wrong configuration in the right box.AJ took ownership and control of the situation, he called up NADY and had them send me directly the correct configuration AND had them open the box to visually make sure the contents were correct.Got the replacement today, and tested every aspect of the unit.I did not even read the instruction manual.Wow, the receiver automagically synced up with each BT-1KU (LT=Lapel/lavalier) as soon as I turned it on.I was doubly impressed with NADY.... and AJ.-Arnie