Margaritaville Audio MIX1-MACAW High Fidelity Headphones, Macaw Large, super sealed and comfortable foam ear-cups provide exceptional sound isolation as well as enhanced bass depth and sound quality Specially designed 40mm (1.58") speaker delivers outstanding precision and low frequency response Multiple MIX1 units can share an audio source using the second 3.5mm input/output Two 3.5mm, male to male tangle free cables included; one with Made for Apple mic/remote and the other standard for all devices Sensitivity: 113dB (1W/1m)Impedance: 32 Frequency Response: 10Hz - 25kHz