Core features: 4-mic ENC calling noise reduction. 35h total listening time. Ultra-fast charging: 10-minute charging offers 1h listening. Low latency. HiFi PU composite diaphragm. BT 5.3. Product features: 4-mic ENC calling noise reduction, HD calling experience. Built-in low consumption chip, up to 35h total listening time with the charging case. Ultra-fast charging, 10-minute charging offers 1h listening. Low latency, picture and sound in sync. HiFi PU composite diaphragm, more balanced music. BT 5.3, low consumption, stable transmission, strong anti-interference, more fluid audio. Ergonomic design, comfortable fit, 4 pairs of eartips for different ear shapes. Better connection, easier operation. IPX4 water resistance, withstands rain and sweat. Widely compatible with Android, iP, Windows systems.