The sound is great, the mic is just as good too

Great sound, but way too bulky and heavy

I haven't tried listening to music on it yet, while I am working, but the sound is great when speaking to customers

For the two weeks they worked properly the 75s were the perfect headset - connected simultaneously to iPhone and PC, great sound, great NC.

Connects to computer with 200 feet of mobility and clear sound, and connects simultaneously (bluetooth) to the cell phone, allows you to manage both calls.