Explore the details of the Air 31 Wireless Airpods . They come with a crystal clear case and are equipped with Type C charging. They feature Bluetooth 5.3 and provide heavy bass stereo sound. They also include noise reduction and a built-in microphone, making them perfect for sports use. They are waterproof earbuds with a LED digital display. The wireless system is Bluetooth EDR on both sides and minimizes power consumption. The frequency is 2.4 GHz with a transmission distance of up to 25 meters. The battery capacity is 250 mAh and the driver diameter is 10mm. The earbuds provide up to 6 hours of playback time, 72 hours of standby time and take about 1-2 hours to recharge. The battery type is a Li-Polymer battery.