The Huawei FreeBuds SE4 Bluetooth Earbuds feature Bluetooth 5.4 connectivity and deliver clear, high-quality sound with active noise cancellation (ANC) for enhanced listening and calling experiences. They have a comfortable in-ear design, offer up to 50 hours of battery life with the charging case, and are IP54 dust and splash resistant for everyday use. These earbuds come with an official 24-month warranty for peace of mind.