You can tell which mode youre in when listening so I dont think that feature is necessary. Please note part of my review being so low is the new Amazon return code process. One of the mics quit working and finally saw that it was detachable. I took a chance that the RT16 receiver was the same as I already had. I bought these in a department store one day because I forgot mine on a trip. Very comfortable flip flop wedge - was looking for a little height in my sandal and this works great! Even better, when my clothes are hanging. Great purchase He loved the sound quality. Vraiment çontente.