Features 1 bluetooth 5 3 Chip Experience low latency dual transmission for stable and anti interference connectivity Optimized for seamless audio experiences whether waiting for calls or gaming on the go 2 AI Call Noise Reduction Advanced AI noise reduction algorithm ensures your voice is clearly conveyed even in noisy environments Enjoy crystal clear calls without the need to shout 3 13 4mm Moving Coil Equipped with a large titanium coated diaphragm these earbuds deliver dynamic bass and melodious mids and highs making every note more charming 4 HiFi Stereo Immerse yourself in high fidelity audio with the headphones superior sound quality creating an experience akin to live music venues 5 35H Playback Boasting long lasting battery life enjoy up to 35 hours of uninterrupted music playback with the charging case Perfect for extended usage without frequent recharging Specifications GeneralSpecificationBrandOPPO ModelEnco Air2ColorWhite BlueWearing TypeIn earSpeaker Unit13 4mmWaterproofIPX4Speaker Sensitivity128±3dBImpedanceup to 32Ωbluetooth CodecAAC SBCFrequency Response20Hz 20kHzbluetoothbluetooth VersionV5 3Supported ProfilesHSP HFP A2DP AVRCPTransmitting Distance10mBattery ChargingBattery Capacity32mAh Earbuds 480mAh Charging Case Work Time5 5h only Earbuds 35h with Charging Case Charging Time2 5hOther FeaturesMicrophoneYesSizeWeightProduct Weight0 0402kgPackage Weight0 0800kgProduct Size80 60 25mmPackage Size120 90 40mmPackage list2 Ear