In ear headphones gold plated stereo plug 35 mm 18 in silicone rubber sleeve reduces background noise available in 5 sizes series jays q jays type of fitting in ear transmission mode wired features gold plated jacks sensitivity 95 dbmw impedance 39 ohm frequency response 20 20000 hz length of cable 06 m type of cable kevlar jack 35 mm jack shape straight weight 8 g included in delivery aeroplane adaptor carry pouch extension cable carry