New hi-tech diaphragm Utilising a new, hi-tech diaphragm means that the diaphragm is 80% thinner than was on the previous series. This results in more detail, faster transients and an extended frequency response. New headband design New headband design offering a separate head strap which allows for the headphone weight to be spread perfectly evenly over the wearers head. It delivers both a more comfortable fit but also a more eye pleasing look. The all new Headband gives a structure intended to be as practically street friendly, built to take the wear and tear of everyday life while looking great as it does it. Standard 3.5mm socket The Headphone cable attachment uses the standard 3.5mm socket which gives improved connectivity and is more physically robust connector too. Improved earpads & cable This latest version of SUNDARA now is supplied with newly improved earpads for enhanced durability and a newly upgraded cable made with stronger, further improved materials (of OFC wire) custom designed for the headphone.