If anyone from Sennheiser is reading this, on the RS-85, why are there two batteries? Don't you know the customer will lose the battery cover if they have to mess with them all the time? When you take the headphones off and hang them on the charger, why do you have to turn them around so left is on the right and vice versa? Don't you want to just pick them up off the head perch and put them on the charger perch? What's with this turn around 180 degrees jazz?
A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
