The WI-C100 headphones are lightweight and portable, with a flexible neckband that helps make them even easier to slip into your bag when you're on the go. The WI-C100 headphones are simple to use, with buttons for playing and pausing music, skipping tracks, adjusting the volume, and receiving calls. The buttons have been redesigned for convenience, with a more pronounced shape that makes them easier to press. Splashes and sweat won't deter these headphones, which have an IPX4 water resistance rating, so you can keep moving to the music. Enjoy up to 25 hours of continuous listening time. If your headphones run out of power, a 10-minute quick charge will deliver you up to 60 minutes of playback.