A major amazon echo marketing component is seven directional microphones. It should be easy to stick an echo on the wall such that left is the washer and right

A major amazon echo marketing component is seven directional microphones. It should be easy to stick an echo on the wall such that left is the washer and right is the dryer or whatever. Also despite sounding similar to tone deaf humans one probably runs at 4001.342 Hz and the other at 3999.114 Hz which likely sounds the same to me, but to a computer is likely very obvious.