The waterproof headphones feature an in-line microphone for phone calls and a multi-purpose button for answering calls, controlling the volume and controlling the playback of the track. Three sets of headphones of different sizes are included to ensure proper fit.Comfortable applicationThree pairs of headphones of different sizes are provided, so it is easy to find the right fit for a more comfortable listening experience. Angle drivers reduce the strain on your ear so you can listen to and enjoy music and podcasts for longer.Performance resistant to sweat and splashingThe waterproof design is ready for active lifestyles, whether you are in the gym or outdoors.Wired, reliability without adapterReady to use directly from the package, the headset does not require an adapter or pre-charge. The multi-control button makes it easy to play, pause, skip tracks, change the volume, or answer a phone call. The built-in microphone makes it easy to receive calls without removing the headset.