High-resolution audio compatible Bluetooth wireless headphones with 49-hour battery life. - Brand: EDIFIER - Model Name: W820NB Plus - Connectivity: Bluetooth - Battery Life: 49 hours - High-Resolution Audio: Supported Edifier W820NB PLUS "Kaden Hihyo Annual Overall Best Buy 2025" Wireless Noise Canceling Headphones, Hi-Res, High-Resolution Wireless/LDAC compatible Bluetooth, External Sound Input, Up to 49 hours of playback, Low latency game mode, Built-in microphone, Suitable for calls, Soft, Lightweight, Compatible with PC/Smartphone/iPhone/Android Purchased on Amazon in June 2024. Used for approximately 50 hours. I think it's still very usable, including the app. As shown in the fourth photo, there are scratches on the head part, but the rest is not very noticeable. Complete accessories. Thank you for viewing.