Adopting the Hybrid Active Noise Cancellation Technology, the inward-facing and outward-facing microphones detect the out-of-ear and in-ear residual noise, and then the dynamic drivers generate accurate anti-noise signals. Achieving up to 40 dB1 noise cancelling effect, HUAWEI FreeBuds Pro allows you to experience the tranquility and purity. Read the Surroundings, Optimize Noise Cancellation Recognizing the ambient sounds intelligently, HUAWEI FreeBuds Pro switches the noise cancellation mode accordingly for a more suitable hearing experience. Let the Sound Through, Make the Voice Clear No need to take off your earbuds. Just a long press, you can switch to awareness mode and reconnect with your surroundings. The unique Voice Mode2 reduces the ambient sounds to make human voices stand out. So you don’t miss the airport broadcasts or a quick chat with friends passing-by. Feel the Breeze, Not the Noise The earbuds’ delicate windproof structure and fluid mechanical design eliminate any whistling sound caused by air friction. Feel free to enjoy the breeze when walking, running and cycling. Smart Control at Your Fingertips The highly sensitive sensor responds accurately to your demands. With swipe, press or pinch, you can turn up or down the volume, take calls, or change your music easily. Smart interactions, easy to control. Ready to Last, Enjoy Your Best With noise cancellation turned-off, a single charge brings you up to 7-hour listening, and up to 30 hours when coupled with the charging case. You can also use your smartphone or tablet to reverse-charge the charging case while you are on the go.