If you haven't come across these yet, you need to check out the Definitive Technology Symphony 1 over-ear headphones, which offer a high-end wireless listening experience that is hard to beat. The headphones have a clutter free design courtesy of Sound United's Chief Design Officer, Michael DiTullo, with big, cushy ear cups and a slick black finish. Inside each ear cup, 50mm audio drivers provide a deep bass and broad sound spectrum wirelessly for up to 15 hours with a 30 foot bluetooth range. The Definitive Technology Symphony 1 Wireless Headphones also feature easy LED button controls on the side to provide instant control over active noise cancelling, to take calls, adjust volume and playback, and for Bluetooth sync. For those hipsters out there, the Symphony 1 even works without batteries with a 3.5mm cable. Each set comes with an equally premium protective case with carabiner, a silk liner, and soft travel pouch to secure your investment. The Symphony 1 is available now directly from Definitive Technology for $399 so give them a look after the jump.