Sennheiser mm400 can't talk through iPhone
Bought new sennheiser MM 400 X headphones these are bluetooth I can hear my music from my IPhone 4s but when a call comes in the music mutes but cant hear or talk to caller
iPhone 4S, iOS 5.1.1
does the headsets mic work with other devices such as computers
that way you can tell if the headset is defect