High-resolution wireless earphones with active noise cancellation. - Model Name: Opera 05 - Features: Active Noise Cancellation - Audio Standards: Supports High-Resolution Audio - Driver Type: Hybrid Dual Driver - Playback Time: Up to 33 hours - Connection Method: Wireless - Codec: LDAC Thank you for viewing. I purchased these about two years ago, but I rarely use them, so I am selling them. I have used them about 20 times. The accessories are all shown in the photos. Please understand that these are used items before purchasing.