Anker Soundcore Spirit Pro B2C - UN Black+Gray Iteration 1

【truly sweatproof technology】: sweatguard technology is specially designed to resist the corrosive properties of sweat. Thanks to sweatguard's extreme waterproof protection, spirit pro does not require a cover for its charging port. 【dual-eq modes】: adjust the intensity of your music. 【customized fit】: choose from multiple sizes of eartips and earwings to find your perfect fit. 【10-hour playtime】: a single charge will power a week’s worth of workouts.