A:AnswerFor PCs with a single audio port, it can connect using its single 3.5 mm audio+mic jack. The included audio/mic splitter cable is for those PC with separate stereo output and mic input.
A:AnswerThere is no indicator, such as a light. At the back of the headset, there is a button you can press to mute yourself. If it's down, you are muted. If it's up, you are not. Other than that, there isn't a tell. I hope this helps.
A:AnswerI bought a $5.00 adapter for my IPhone and it worked seamlessly. Mic as well! It integrated without any issue and worked for talking on the phone and talk-to-text / dictation needs in specific apps.
A:AnswerGiven that it is corded, you will need the adapter for your IPhone if you don't have the 3.5mm headset port. With that said, adapters can be as cheap and reliable as $5.00. That's what I did and had zero issue with it recognizing the equipment as headset with a microphone.