It in fact came very fast. Product looks like undamaged. When I installed new good baterries it works ONLY when I whisper or speak from very short distansce stright to the unit. Sounds from the room (like TV set) does not go into heatphones. Headphones are OK - I have tested in in other device too. Other headphones in this unit do not change situation. Of course the same day I had described the problem to the seller givin him/her time for proper reaction - over the week still no reaction from the seller. Anyway the unit looks good & I think that my unit is not OK - hope genereally irt is good. Anyway seller did not answered.