these be awesome ! you can listen to you tv , stereo , etc. from almost anywhere ! even if you outside or on a different floor . this thing transmit through door , wall , floor , other people , anything ! -lrb- I think it be range be about 100 foot -rrb- plus , you control the volume . so , you can crank up the volume and be in you bedroom list to the cd in the living room ! you can move around , too , and there be no interruption .