OPPO Enco Air4 Earphones/Active Noise Cancelling/Bluetooth 5.4/Suitable for sports and gaming scenarios with Hi-Fi stereo sound built-in HD microphone and call support.

OPPO Enco Air4ModelETEE1 (China Version)Audio QualityDriverφ12.4mm Dynamic DriverDriver Sensitivity112±3dB@1KHzFrequency Response Range20~20KHzMicrophone Sensitivity-38dBV/PaBluetooth®Bluetooth® CodecAAC/SBCBluetooth® VersionBluetooth® 5.4Bluetooth® Range10mBattery LifeBattery TypeRechargeable Li-ion CellBattery Capacity58mAh (earbuds) /440mAh (charging case)Music Play Time(AAC, Default setting, 50% volume, ANC off): 12h (single charge) /43h (with Charging Case)(AAC, Default setting, 50% volume, ANC/Transparency mode on): 8h (single charge) /28h (with Charging Case)ChargingCharging Time60min (earbuds) /80min (earbuds + charging case)Charging Input(charging case) : 5 V ⎓ 1 ACharging Output(charging case to earbuds) : 5 V ⎓ 0.4 ACharging PortType-C* The above specifications were obtained based on tests performed in OPPO laboratories. Charging times were tested in OPPO laboratories at a temperature of 25°C using an OPPO standard charger. The actual results may differ slightly depending on environmental factors and the charger used.Water and dust resistanceWater Resistance (Earbuds)IP55SizeWeight (Earbud)4.2g ± 0.1gWeight (Earbuds + Charging Case)46.2g ± 0.2gSize (Earbud)29.99mm * 20.30mm * 23.87mmSize (Charging Case)66.60mm * 51.24mm * 24.83mm