Bose lifelike sound Bose proprietary acoustic port design and a premium, high-efficiency driver combine to deliver big sound from a small acoustic package. Bose signature Volume-Optimized Active EQ automatically boosts the lows and highs so that music, videos, and voices always sound balanced at any listening level. And StayHear™ Max tips create a tight seal with your ear canal — critical for hearing the deep low notes that add impact and emotion to your music and for blocking the ambient noise around you so you can focus on your music and your workout. Secure and comfortable fit Bose Sport Earbuds sleek design lets them sit close to your ears. They come with three sizes of StayHear™ Max tips, so you can find the right fit for you. Every surface that touches your ear is made of soft silicone. Meanwhile, the unique umbrella-shaped tip and the extended flexible wing keep your Bose Sport Earbuds securely in place — without need of an ear hook — no matter how much you shake your head or jump up and down. Sweat and weather resistant design Designed to resist moisture from sweat and weather, Bose Sport Earbuds go through rigorous quality testing for durability so they’ll stay in top shape, just like you. They’re rated IPX4, which means the electronics inside are protected against splashing water in case you get caught in the rain on a run. Clear phone calls If you get a call, instead of interrupting your workout, double-tap the right earbud to answer or press and hold it to reject. If you answer, you’ll hear the call clearly in both ears. Meanwhile, your caller will hear you clearly, too — thanks to the beamforming microphone array that separates your voice from surrounding noise. Simple touch controls Bose Sport Earbuds feature a capacitive touch interface. On the right earbud, double-tap to play or pause music and to answer calls. And on the left earbud, double-tap to engage a Shortcut function like checking your battery level or skipping a track. Up to 5 hours battery life per charge Bose Sport Earbuds provide up to five hours of battery life per charge. They’re charged by placing them in the included charging case. When fully charged, the case can provide two full charges for up to 10 more hours. And if your battery runs out when you’re on the go, you can do a 15-minute quick charge for up to two hours of playback time. Reliable Bluetooth® connectivity Bose Sport Earbuds offer complete freedom of movement. As long as you’re within 30 ft. (9 m) of your device, you’ll hear whatever your device is playing, while a Bose custom-designed antenna hidden on the outside of each earbud helps you stay connected. Bose Music app Bose Sport Earbuds connect to the free Bose Music app, which lets you name your earbuds, set the controls the way you like them, check your battery, choose your voice assistant, and more.