Bluedio V (Victory) Pro Patented PPS12 Drivers Wireless Bluetooth headphones(White) 1.PPS 12 ELECTRO ACOUSTIC TECHNOLOGY: Bluedio Victory developed with an advanced propietary technology to provide clarity and deep sound, particularly for music and films. 2.TRANSCENDENT S/PDIF OPTICAL TRANSMISSION:24bit 48kHz audio resolution for high definition audio quality. 3.TOUCH-AND-DRAG OPERATION: A sensitive touch pad on the right ear, giving you full control of your listening experience. 4.PROTEIN EARPAD: High quality skin-texture earpad, designed for your fit and comfort, allows you to enjoy high-quality, Long-listen comfort. 5.DUAL MODES: Can function wirelessly via bluetooth, or wired via 3.5 mm auxillary cable, 6.3 mm adapter or optical audio cable (provided). Wired mode is suitable for high bandwidth mp3 feed.