I am looking for a pair of wireless speakers that will send audio from older iMac to my parents bedroom. They have some speakers connected to their iMac but would like to have a set in their bedroom so they don't have to up the volume in order to hear them in the other room. They are over 80yrs old, so it needs to be something simple to operate. I am hoping there is a solution that doesn't involve bluetooth - anything that is simple so I won't be getting SOS calls on a frequent basis. They do have a wireless router just in case that is something that is needed. Thanks.