• 【Expressing fine details with LDAC audio codec】The W830NB wireless headphones are compatible with Hi-Res and adopt the high-resolution codec "LDAC" with a maximum transmission bandwidth of 990kbps, which is three times that of conventional codecs This allows for the transmission of high bit rate high-resolution audio sources, maintaining detailed sound source details, achieving natural high sound quality with almost no loss • 【Noise Cancelling Up to -45dB Creates a Quiet Music Space】Upgraded hybrid digital noise cancellation (ANC) technology provides noise cancellation up to -45dB In the silence, the music resonates more clearly and deeply, inviting you to a music journey filled with immersive concentration on the music • Incredible up to 94 hours of continuous playback: The Edifier W830NB has a built-in high capacity battery and low power consumption chipset that allows for up to 94 hours of continuous music playback with ANC function off Enjoy your favorite playlists anytime, anywhere, without worrying about the playback time 【FOLDABLE DESIGN FOR EASY PORTABILITY】Completely foldable design makes it easy to carry and suitable for travel • 【Stable connection and multipoint connection support】Equipped with Bluetooth 5.4 for stable connection, and also supports multipoint function to connect with two devices simultaneously 【Innovative Spatial Audio】The 3D sound field algorithm brings a cinematic surround ambiance, providing an immersive and enjoyable stereo listening experience • 【1-year warranty and instruction manual included】The Edifier W830NB comes with a 1-year warranty If any issues occur within one year of purchase, excluding man-made damage, please feel free to contact us 【Dedicated App "Edifier ConneX"】Choose from 3 preset EQs to match your music style or customize your own equalization with customizable EQ mode for a personalized listening experience