Wireless earphones with active noise canceling, up to 28 hours of battery life. I was using the smallest size ear tips. I will clean them as thoroughly as possible before shipping. I purchased these about 3 months ago, but I mainly used AirPods, so I didn't use these very much. - Brand: soundcore by Anker - Model Name: Liberty 4 - Color: White - Features: Wireless earphones - Special Features: Hi-Res Audio - Battery Life: 28 hours - Noise Canceling: Active Noise Canceling - Water Resistance: IPX4 Thank you for looking.