Specifications Earphones Driver Size: 8mm Impedance: 16 Ohms Frequency Response: 20 to 20kHz Rated Power: 3m W Max. Input Power: 10m W Sensitivity: 105 dB+/-3dB Plug: 3.5mm Mechanical Connector Specification: 3.5mm 4-pole stereo/iPhone compatible plug Weight (without packing): 15.4 grams Package Contents Include Stereo headset (with microphone for NE-700M) 3 pairs of single flange ear-tips (2 small, 2 medium, 2 large) and 1 pair of triple flange ear-tips Carrying case