Sennheiser is pleased to introduce IE 100 PRO as the successor to its popular IE 40 PRO in-ear monitoring headphones.  The IE 100 PRO helps users discover the power of dynamic in-ear monitors on stage. Improve the way you perform on stage and enrich private listening pleasure by enhancing the way you hear - wired or wireless, it’s your choice. The IE 100 PRO utilizes the same robust connector developed for IE 400 PRO and IE 500 PRO.  Features Innovative, dynamic 10mm broadband transducer for warm, high-resolution sound Reduces acoustic stress through precise, dissonance-free reproduction even at maximum sound levels Good fit and wearing comfort, thanks to ergonomic earmold design with flat profile Replaceable cable, fit for stage use and with internal cable duct (patent pending), improved connection (same as with IE 400/500 PRO) and reinforced ear hook