Powerful Bass, Detailed Sound. EarFun Free 2S wireless earbuds was highly picked as "The Best Budget Wireless Earbuds" by Wirecutter. The 7mm composite dynamic driver ensures powerful bass and detailed mids and treble, providing a high-quality, fully comprehensive music experience. | 4 Mics for Hands-free Calling Equipped with 4 built-in microphones, the true wireless earbuds accurately capture specific frequencies of your voice, minimize the background noise extraneously, and pick up human voice. You can stay comfortable and speak clearly, even outdoors. | EarFun App for Tailoring Sound. Download the EarFun App, more personalized settings and features can be found here, such as multi-EQ adjustment for your preference, customized touch control, battery display, and more. And you can turn on the game mode on the App to get a lower latency experience. | Listen All Day, Charge in Minutes. The true wireless earbuds last for 7 hours of playtime on single charge and total of 30 hours with charging case. A quick 10-minute charge provide 2 hours of listening when you’re in a rush. And the wireless charge provides a convenient charging way with no wired attached. | Ergonomic Design, Comfort in Mind. The lightweight Bluetooth earbuds have an ergonomic design, offer a more weightless and comfortable wearing experience to deeply enjoy music all day. Besides, IPX7 waterproof earbuds allow you no fear of rain and sweat.