Available for download from your fave iOS, Android app store, the Klipsch Connect App makes it easy to get the latest firmware updates, monitor battery levels, adjusting EQ settings, and contact customer service in an instant. After purchase, please download the Klipsch Connect APP and make sure your T5 firmware is up to date for the best performance possible. Rooted in decades of research, Klipsch earphones include patented oval ear tips in several sizes for a perfect seal, excellent bass, noise isolation and lasting comfort Outfitted with the latest Bluetooth 5 technology and combined with aptX and AAC high-quality conversion technology, the signal is as good as wired with no delay during music or video playback T5 True wireless earphones are water-resistant, meaning Mother nature will not interrupt your day or your music and include a fast charging killer metal case that has power to last for days.