JBL UA Flash X true-wireless sport headphones (black)

Under Armour's robust wire-free earbuds get even stronger Last year, we named the original Under Armour Flash earbuds to our list of " best headphones for running " thanks to their super-durable, waterpoof build. For these next-generation Flash X true wireless earbuds, JBL and UA didn't make any drastic design changes. But they did add some upgrades that make them even better for working out. Namely, they have longer battery life - now up to 10 hours - and better, stronger wireless performance with Bluetooth 5.0, the latest version of Bluetooth. There's no cable connecting the left and right earbud, given you extra freedom while you run and exercise. Soft-grip silicone ear tips and stabilizers help keep the rugged headphones from slipping out or moving around. As for the audio? It's covered by JBL, so you get energetic sound with deep, quick-attack bass. Ready for any weather Bluetooth 5.0 offers a strong wireless signal, so you can keep your phone safely tucked away when you're working out in bad weather. You shouldn't have to worry too much about the headphones themselves. They are rated full iPX7 waterproof and Under Armour always uses durable, high-grade materials that are a cut above your typical gym gear. A comfortable, secure fit Three different sizes of ear tips are included, to help you get a secure and comfortable fit. With in-ears like these, a tight seal helps you get the best possible sound, especially when it comes to the bass. The earbuds can be worn with or without winged attachments, depending on what feels best to you. Safety first In the gym, it's sometimes OK to shut out the world and focus on your workout. But if you're running or exercising out in the real world, you need to stay aware of your surroundings. With these headphones, you can tap the "UA" logo on the right earbud to choose one of the special listening modes: "Ambient" mode lets you hear external sounds mixed in with your music. "Talk Thru" mode turns the music off and uses buit-