About this item [comfortable. Portable. Enjoyable] : Take your tunes on-the-go with the ergonomic TWS Earbuds design for increased portability [Ready in a Flash] : Listen all day with a built-in 300 mAh battery Enjoy 7 hours of playme on a single charge, while the compact case extends it to 28 hours [Clear Call] : Two Microphones capture your voice and the active reduces unwanted noise. [IPX 3Water-resistant.] : Your perfect partner for any workout.With a water-resistant design, no sweat can stop you. [Easy access controls ] : With the earbud switch mode controls, you can turn your earbuds on and off, answer calls, and adjust the volume for a beer audio on-the-go experience.