Meet the FONENG BL04 TWS Bluetooth Earphone, a cutting-edge Bluetooth device that redefines connectivity. Sporting the advanced Bluetooth 5.0 technology, it ensures seamless pairing and smooth communication within a generous 10-meter range. With a rechargeable battery capacity of 400mAh, the BL04 guarantees extended usage without the worry of frequent recharges. Even more impressive is its internal 35mAh battery, optimizing power usage for prolonged operation. Say goodbye to the inconvenience of constant reconnection, as the BL04’s intelligent design and powerful features elevate your wireless experience to new heights.