Headphones with MFI controller/microphone. Driver unit size: 40 mm. Plug angled stereo: 3.5 mm. Speaker sensitivity: 112 +/- 3dB. Frequency Response: 20-20KHz. Speaker Impedance: 32 Ohm. Maximum power input: 40 mW. The folding function lets you easily store the headphones. Three button in-line remote for music control and a microphone for calls and FaceTime. Tested to withstand rain, snow and hail while delivering clear sound from the protected 40 mm driver. Offers dynamic 40 mm closed titanium drivers for clear and accurate sound on all frequencies. Cable length: 4’ 5”.