HUAWEI FreeBuds Pro 4 is a pair of in-ear wireless stereo Bluetooth noise cancellation earbuds (left and right) that comes with a charging case and features an unprecedented Color, Materials, and Finish (CMF) design. You can connect them to other Bluetooth devices such as phones and tablets over Bluetooth. It ensures stable voice calls with powerful wind noise cancellation, and supports various features such as active noise cancellation (ANC). Ultra-hearing dual-speaker unit and digital cross-over. FreeBuds Pro 4 reproduces lossless audio quality, and transcends the limits on TWS range and timbre. FreeBuds Pro 4 comes with feedforward (FF) and feedback (FB) microphones for hybrid ANC, enhanced noise cancellation performance adopt two types of ear tips (Shape-Memory Foam Ear Tips and silicone earplugs). Besides, noise cancellation during calls is also supported with a triple-microphone design, voice pick-up (VPU) bone sensor, and deep neural network (DNN) algorithms, to ensure crystal clear voice calls. The earbuds support Awareness mode and HD recording. Because of its standout power efficiency, FreeBuds Pro 4 features a long battery life with multiple charges in the case.