These earphones glow synchronously with your music or mobile phone ring tone. The glowing light will automatically off when the music stops or when the talking time is over 180 seconds.
They have a built-in microphone for hands-free calls or voice chat, and the button on the mic allows to switch easily between songs and incoming calls.
LED earphones for better night visibility
Purchase link: http://goo.gl/VRKJlu
If you don't like blue, there are green and red options.
Check them out here: http://goo.gl/VRKJlu