US MILITARY GRADE FOR EXTREME DURABILITY Built for elite athletes, these earbuds meet US Military Standard for ruggedized electronics - passing 9 durability tests - and ultra-durable to protect against dust, water & sweat.\\nSPATIAL SOUND POWERED BY DOLBY Instead of experiencing sound directly inside the ears, you’ll feel sound as if it’s outside your head, making listening on earbuds more lifelike. Play a video on your phone or put on your favorite work-out playlist.\\nEASILY SWITCH BETWEEN iOS OR ANDROID SMARTPHONES AND SMARTWATCHES Download your music to your smartwatch, connect your earbuds, and head out for a phone-free run. With Bluetooth Multipoint, you can connect to 2 devices at same time or seamlessly switch between your phone or smartwatch without needing to reconnect.\\n56-HOUR BATTERY LIFE Boasting up to 56 hours with ANC off (32 hours ANC on) with the earbuds + sleek charging case, and the fast charge feature, these earbuds allow you to never worry about being caught out by low battery again.\\nBLOCK OUT OR HEAR NOISES AROUND YOU - YOUR CHOICE Adaptive Hybrid ANC auto-filters unwanted noise, even in windy environments. Wind-neutralizing HearThrough technology provides improved awareness when running outdoors.