yay ! I get it ! I plug it in , turn it on and crystal clear I can hear my neighebor on the left hand side talk about he will with he attorney on one channel , and my neighbor on the right hand side orderede capri in khaki on the other channel . Perfect ... except I want to hear my music . I think it be in the next channel but can not tell for sure under all that static . 1 star for get my neighbor chordless phone , that may come in useful to someone sometime . the headphone be comfortable and light . battery be contain within the headphone , so you have to replace battery every so often . static be huge issue , I can barely hear what I be suppose to hear and I be stand right over the base . the base also very light , do not even feel substantial enough to transmit anything .