Forgot to charge your SoundSport wireless headphones? With the SoundSport charging case, you charge them on the go, anywhere, anytime. The built-in battery provides up to 18 hours of extended listening time. The caseâ€™s compact, durable design protects your headphones as they charge, so you can just toss them in your bag and go. Running short on time? Just a quick 15-minute charge gives you up to 1 hour of music. The case reaches full charge in less than 2 hours. It even features LED battery indicators for both the headphones and case, so youâ€™re never left guessing.