Reduce/decrease/cut Down Neighbor Upstairs Noise Machine Noise Deadener/Sound Eliminator/Silencer/Muffler Strike Back ,Easy to Install

A:The function is beat,Can only be used upstairs B:The function is vibration,Can only be used upstairs C:The function is beat,For use by neighbors next door D:There are two functions of vibration and beat, Can only be used upstairs E:There are two functions of vibration and beat,At the same time has the function of control