The active noise cancellation can reduce up to 35dB of surrounding noise. A single charge brings you up to 6 hours listening time with noise cancellation turned-off, and up to 28 hours when coupled with the charging case. Redmi Buds 3 Pro can be connected with two devices simultaneously. The devices include smartphones, tablets, PCs, and other smart devices. Redmi Buds 3 Pro supports fast charging, only 10 minutes charge you can use 3 hours. Don’t worry about losing earphones, as long as your earphone is connected to Bluetooth, you can find your earphone through the MIUI system.