<ul><li>Hi-Res Audio Certified: Enjoy more detailed music thanks to Edifier W820NB's 40 mm dynamic drivers. High-resolution Audio compatible. Supported Audio Format(s) - SBC</li><li>Advanced Noise Cancellation Technology: Hear every word, note, and tune with incredible clarity, no matter your environment.</li><li>Powerful Battery: Up to 49 hours of battery lifeon a single charge keeps you listening instead of charging, just focused on your work or travel.</li><li>Clear Hand-Free Calling: Built-in Mics with DNN (deep neural network) noise cancellation for superior call quality</li><li>With Multi-mode: Ambient sound mode let you control what you hear. Game mode gives you a low latency and immersive gaming experience.</li></ul><br><br>

Edifier W820NB Hybrid Active Noise Cancelling Headphones - Hi-Res Audio - 49H Playtime - Wireless Over Ear Bluetooth Headphones for Phone-Call - White