Sennheiser MM 400/450 Bluetooth headphones
For the traveler that’s addicted to their iPhone, the Sennheiser MM 400/450 Bluetooth headphones are intended to be used for music and phone calls. Both the 400 and 450 models have an invisible microphone for talking on the phone and a wired connection option for when wireless is unavailable, like when on a flight or when you want to save battery life. The headsets also fold into their molded travel cases and come with an airline friendly adaptor.
Source: W3SH
