Wired Music Headset RM-512 is lightning headphone does not have an internal microphone, so, when you'd like to answer the phone call, you need to answer it via your mobile phone microphone.Treat your ears to high-resolution 24-bit audio, and never let your music be compromised by the muddy range of 3.5mm earbud jacks. The Lightning connector was designed especially to pair with your all smart phones. With Pure Lightning Earphones, you can even connect effortlessly to apps like iTunes Radio at the push of a button.