Grado has rolled out the ultimate in-ear receptive to advice isolating earphones in the form of the GR8. Priced during around $300, the earphone comes with the customary 3.5mm jack as well as supports magnitude operation of twenty -20,000Hz, 118db/1mw of sensitivity, 120 Ohms impedance, as well as 51-inch/130mm (oxygen-free copper wire). Each squeeze comes with the span of Grado GR8 earphones, 3x ear tips (small, medium, large), 4x Ear polish explanation cloth, as well as 2x ear polish explanation fine fine cloth ring. [Product Page]