Blue's Mo-Fi headphones feature an integrated all-analogue audiophile amplifier, paired with 50mm titanium-reinforced ultra-responsive dynamic drivers to deliver every detail of your music with clarity and punch no matter what device or format you are listening on. Blue are the only headphones in the world that have a built-in audiophile amp. They have a revolutionary personalised fit, with the innovative design of the multi-jointed headband being inspired by the finely tuned suspension of Formula One race cars. It creates a perfect seal around your ear, resulting in powerful bass response, improved isolation and reduced sound bleed.