【24 Hours Shipping】OPPO Enco Air 4 True Wireless Headset/Earphone Bluetooth 5.4 Active Noise Cancelling 43H Battery Life True Wireless Headphone 真无线蓝牙耳机

OPPO ENCO Air3 - Main Features:Audio qualityDriver: φ13.4mm Dynamic UnitDriver sensitivity: 125±3dB @1KHzFrequency response range: 20~20KHzMicrophone sensitivity: -38dBV/PaBluetoothBluetooth codec: AAC/SBC (music), CVSD/MSBC (conversation)Bluetooth version: BT5.3Bluetooth range: 10mBattery LifeBattery type: Rechargeable Lithium-ion BatteryBattery capacity: 27mAh (earbuds) / 300mAh (charging case)Communication time (50% volume): 6h (single charge) / 25h (with charging case)ChargingCharging time*: 1.2H (earbuds) / 2H (earbuds + charging case)Charging input (charging case): 5V ⎓ 1ACharging output (charging case to earbuds): 5V ⎓ 400mACharging port: USB Type-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): IP54.2