Experience a truly seamless connection with the Tiso i4 True Wireless Microphone Earbuds. Using the latest in connectivity technology, these sport earbuds boast an impressive four-hour battery life. But, they also come with a charging case that provides an additional 25 hours. When paired with a fellow Bluetooth 5.0 device, you get even more listening time. With an IPX5 waterproof rating, the i4 Earbuds are made to fit your active lifestyle. You can use them as a pair or one of the earbuds on its own to suit your needs. Automatically connecting to your device, they feature intelligent noise reduction. As a result, your calls are impressively clear no matter your environment. And, with the built-in mic, your caller can hear you crystal clear.