Blue wireless earbuds with active noise canceling and up to 42 hours of battery life. - Brand: Master & Dynamic - Model Name: MW08 SPORT - Battery Life: Up to 42 hours - Active Noise Canceling: Yes - Material: Premium Sapphire Machined Aluminum - Color: Blue - Charging Case Design: Carbon Fiber One side has a crack in the sapphire glass from being dropped on the road. It is not chipped, so it is not sharp. They are working normally. The case is in beautiful condition. The certificate of purchase is included. Since there is a crack, I am selling it at a low price, so please do not ask for a discount. Ear tips, cable, and adapter are unused. Thank you for looking.