Specification Design : Single High Precision Compound Ø10mm Dynamic Driver, 6 Balanced Armature Drivers, With 3-Way Crossover Design LF : 1 Ø10mm compound dynamicMF : 2 BAHF : 4 BA IPP Technology : 3 Pipe Sensitivity : 112dBFrequency Response : 9Hz-23kHzImpedance : 16 ohms Description A new wave to our collection, we are doing new engineering and design for improvement which is comfort of fitting, extension of frequency, and housing acoustic. So, the HE-N7PRO is one of this case, the new developed case, provide the precise fitting to the next level. The new custom dynamic and 6 BA drivers can give flexible movement with nimble response, redesigned 3-way crossover and IPP (Independent Pipeline Purify) technology made more solid and smooth sounding. Notice: For N7PRO produced since September 2024, the iem cable has been updated.