IPX4 With an IPX4 rating, these true wireless headphones are resistant to splashing from any direction. They won't mind a little sweat, and you don't need to worry about getting caught out in the rain. Portable USB-C charging case. Hit the road with multiple charges in your pocket. You get up to 6 hours play time on a single charge, plus 18 extra hours from a fully charged case. A short 15- minute charge in the case gives you 1hr and of play time. A full charge of the case takes 2 hours via USB-C. Mono mode Need to take a call when your headphones are running low on power? Get more talk time by using one earbud while the other one charges. The mic is automatically assigned to the earbud you're using, and you can simply swap over when needed. Secure, comfortable fit You get great sound from the 6 mm neodymium drivers and you can rock your tunes in real comfort thanks to the snug, lightweight design. Soft, interchangeable ear-tip covers help you find a comfortable in-ear fit. Voice assistant Wake your phone's voice assistant without touching your phone. Ask smartphone¡¯s voice assistant to play music, get directions and check informations, and more. Smart Bluetooth pairing. These earphones are ready to pair the instant you take them out of their charging case. Once they're paired, the earphones remember the last device they were paired with