HTC Purple Tangle Free Headphones With a Charm Call Indicater Special flat earphone wire design to provide a better feel with excellent noise isolation tangle-free cable avoid snarls and knots the call indicator charm is that once its attached to your phone, it makes it easier to locate it when its in your bag or purse. HTC Call Indicator will ONLY with HTC Rhyme Phones by Verizon The charm is designed to illuminate whenever you get a call or a text, so nothing, or no one, goes unnoticed fit for HTC Series Compatible with:fit for Samsung Series and any other devices with standard 3.5mm stereo plug