Sony XBA-H1 In-ear Headphones with Hybrid Driver System. The Sony XBA-H1 In-ear Headphones have been designed in collaboration with Sony Music Entertainment, the XBA-H1 in-ear headphones let you hear music the way musicians intended. Hear detailed sound reproduction across the full frequency range thanks to a hybrid 2-way driver unit with built-in Beat Response Control technology, you'll be able to bump up the bass without worrying about distortion. Enjoy flawless reproduction of mid and upper levels, thanks to the Balanced Armature driver units and hear your music and nothing else, thanks to the close fit and closed earbud design. The XBA-H1 in-ear headphones - designed in collaboration with acclaimed music duo, Hurts - utilise a hybrid driver system to deliver flawless sound reproduction across the full 5Hz to 25kHz frequency range. The Balanced Armature (BA) driver units inside each earbud host a lightweight, ultra-responsive diaphragm that's been specially designed to enhance the reproduction of upper and mid-range tones. These BA drivers combine with a dedicated 9mm driver unit to deliver beautifully detailed sound quality across all frequencies. From rich, deep bass lines through to delicate, high-end vocals - you'll hear every note of every song. So buy this Sony XBA-H1 In-ear Headphones with Hybrid Driver System Now £84.00.