Optoma NuForce HEM6 Reference Class Hi-Res in-Ear Headphones with Triple Balanced Armature Drivers THREE LATEST Hi-Resolution Knowles Balanced Armature Drivers for an immersive performance. ACOUSTICALLY calculated and vibration free Lexan earpiece for comfortable and fatigue free fit. SUPERIOR Linear-Phase crossover design for seamless driver integration. TWO REPLACEABLE CABLES included: microphone cable when listening music on-the-go and high-end silver and OFC copper earphone cable for the best sonic performance. PACKAGE INCLUDES: range of silicon tips, COMPLY soft foam ear tips, WATER and AIRTIGHT POLYCARBONATE case, fabric POUCH, cleaning tool, 3.5mm to 6,3mm adapter and a safety guide. Connectivity Technology: Wired