A:AnswerTechnically yes, but it’s not ideal. These earbuds are somewhat bulky, which can make it difficult or painful to slide a snug helmet on without knocking them out of place. More importantly, while the noise cancellation is world-class, it can be dangerously effective on the road; you should stick to Aware Mode to ensure you still hear sirens, horns, and traffic. Since touch controls are inaccessible while riding and many jurisdictions have laws against wearing earbuds in both ears, a dedicated helmet communication system (like a Cardo or Sena) is generally a safer and more comfortable long-term solution.
A:AnswerI use my Bose all the time, no problem at all with hearing the person on the other end, and I haven’t had any complaints from anyone about not being able to hear me.
A:AnswerYes - the QuietComfort Earbuds II are designed to be used with Android or iOS devices. If your iPhone supports iOS 15 or newer, then you'll also be able to use the earbuds with the Bose app.