Wireless earbuds with noise-canceling function, up to 26 hours of battery life. - Brand: soundcore - Model Name: Liberty Air 2 Pro - Features: Noise Cancelling - Connectivity: Bluetooth - Battery Life: 26 hours Only the left earbud is not producing sound. The reason is unknown. Only those who understand this are welcome to purchase. Other than that, they are in good working condition. Thank you for looking.