Features 1 bluetooth 5 4 Chip Offers high transmission speeds low power consumption stable signal and enhances overall performance 2 12mm Titanium Diaphragm Dynamic Coil Unit Delivers powerful dynamic sound with excellent density and elasticity capturing the high fidelity sound 3 360° Surround Sound Creates an immersive audio experience giving you the sensation that sound is coming from all around perfect for a realistic listening environment 4 AI Call Noise Reduction Utilizes advanced AI technology to effectively reduce background noise ensuring clear and smooth call communications 5 24H Playback Enjoy up to 24 hours of playback time when combined with the robust charging case keeping you connected and entertained the whole day 6 Low Game Latency Designed with a low latency setup specifically for gamers ensuring that audio and video are perfectly synchronized for an immersive gaming experience Specifications GeneralSpecificationBrandLenovoModelEA390 ColorBlack White Pink GreenWearing TypeEarhooksSpeaker Unit12x17mm 162ΩFrequency Response20Hz 20kHzbluetoothbluetooth VersionV5 4Supported ProfilesHSP HFP A2DP AVRCPTransmitting Distance10mBattery ChargingBattery Capacity40h Earbuds 360mAh Charging Case Work Time5h only Earbuds 24h with Charging Case Charging Time1 5hOther FeaturesMicrophoneYesSizeWeightProduct Weight0 0600kgPackage Weight0 0900kgProduct Size90 50 25mmPackage Size120 80 45mmPackage list2 Earphones1 Charging Case1 Charging Cable1