LinkBuds offer a comfortable open-ring design for everyday listening. Crystal clear conversations with high quality sound. Integrated V1processor for balanced high quality sound. Precise Voice Pickup technology supports clear phone calls. Up to 5.5 hours of battery life - additional 17.5 hours with charging case. IPX4 Splash and sweatproof design. Control audio by tapping on the front of your ears. Adaptive Volume Control. One button connects to Google Assistant Siri or Alexa. Includes 5 sizes of ear shape supporters and USB-C charging cable.