Say hello to the aptly named earbud for every part of your daily grind, the Skullcandy® Grind™ True Wireless Earbuds. With premium sound, hands-free voice control and a water/sweat-resistant design, they can do it all. The earbuds and charging case provide a combined 40 hours of playback, and the buds can play for nine straight hours without needing a charge! The case will provide an additional 31 hours of playback before needing to be charged. With built-in Skull-iQ technology, simply say "Hey Skullcandy" to activate your personal assistant. Once activated, you can control your audio, answer/reject a call, turn on stay-aware mode and a whole lot more. The built-in, dual noise-reducing microphones create a natural and clear call quality experience. And with an IP55 rating, they're dust-, sweat- and water-resistant. Best of all, a quick 10-minute charge provides an additional two hours of playback.