Acoustic control chamber and 40 mm "Free Edge" diaphragm speakers with Hi-Res Sound compatibility (LDAC) for exceptional sound quality at deep bass and minimal compression, whether in music or calling. High-performance hybrid noise reduction to eliminate noise distractions (noise cancelling). Two "Ambient Sound" modes, "Transparent" mode to hear everything and "Attention" mode to only pick up voices. 8 mics and advanced wind noise reduction to transmit your voice perfectly with every call. The stability and speed of connection ensure you and your partner high-quality calls. Ergonomic over-ear design with 3D thick memory foam ear cups for a perfect fit and total comfort that can easily fit into its compact storage case. Your EAH-A800 accompanies you everywhere with 50 hours of battery life (NC enabled), as well as 10 hours of playback with 15 minutes fast charge. Connect two Bluetooth devices at the same time with Bluetooth Multipoint 5.2.