<b>Ultra-Stable Connection</b> <br> <br>Adopt the newest Bluetooth 5.0 chipset with high resolution decoder built-in to deliver extraordinary Hi-Fi sound with low latency. EarFun Free works flawlessly at a distance up to 49 ft (15 m). <br> <br> <b>IPX7 Waterproof</b> <br> <br>Protected by our Innovative SweatShield Technology that hermetically seals the internal circuits, so EarFun Free Bluetooth Earbuds will keep every single drop of sweat at the outside where it belongs. Take the earbuds with you even in kayaking or surfing! <br> <br> <b>Two Ways to Charge</b> <br> <br>The carry case can be charged via USB-C or a Qi wireless charger. Just 10 minutes charging can make 2-hour listening and take 1.5 hours to full charge the wireless headphones. Charging wirelessly offers you a more convenient charging method. <br> <br> <b>Binaural Stereo Call</b> <br> <br>When making phone calls, Binaural Call function of our wireless earbuds are designed for a natural call experience. It helps to deliver a clear and stereo sound, allowing you to enjoy HD calls and perfect sound experience. <br> <br> <b>Intelligent Voice Assistant</b> <br> <br>EarFun Free Truly Wireless Bluetooth earbuds feature intelligent voice activate assistance so that you can safely and conveniently control your mobile device and pick up calls while driving or performing other focusing intensive tasks. <br> <br> <b>Travel-Friendly</b> <br> <br>EarFun Free includes charging case which fits in any bag or jacket pocket that you’re taking on-the-go with you. Lights on the outside of the charging case will indicate how much power is left before your next charge.