Memory foam and leather headband for a touch of luxury, the he r9's steel headband is coated in high end memory foam and supple leather'. '.strtoupper('t')he memory foam provides a comfortable fit, while the leather is breathable and hard wearing'. '.strtoupper('t')he headphones are strong and lightweight, with a great musicality that is uncommon at this price'. '.strtoupper('f')inally, the striking crimson earcups are large enough to give the unique drivers enough volume to produce that stunning bass'. '.strtoupper('c')able connection ndash dual compatibility mode the socket can accommodate both dual sided unbalanced 3.5mm cable and single sided 3.5mm balanced cable left socket'. '.strtoupper('t')he he r9 comes with a dual 3.5mm trs cable included only'. '.strtoupper('h')i res bluetooth bluemini add on you can convert the he r9 headphones to wireless operation with the provided r2r'. '.strtoupper('t')his unit just plugs in unobtrusively to one of the input sockets'. '.strtoupper('t')his quality unit is also made by hifi man and uses the proprietary himalaya dac'. '.strtoupper('m')ost modern streaming codecs are built in, such as ldac, aptx hd as well as aac and sbc'. '.strtoupper('o')ne of the best chipsets is used with the qualcomm qcc5124'. '.strtoupper('t')his has a frequency response of 20 hz ndash 20khz'. '.strtoupper('b')attery life is 6 7 hours.