Features 1 Advanced bluetooth Chip V5 4 Experience superior connectivity with the advanced bluetooth 5 4 technology delivering faster and more stable connections for seamless audio and video synchronization 2 10mm Ultra Thin Diaphragm Equipped with a highly sensitive 10mm diaphragm these earbuds deliver exceptional sound quality with crisp highs balanced mids and deep lows providing a full spectrum auditory experience 3 AI Call Noise Reduction Featuring AI intelligent call noise reduction these earbuds ensure crystal clear conversations The built in microphones effectively reduce environmental noise allowing you to communicate effortlessly even in noisy surroundings 4 20 Hour Long Lasting Playback Enjoy up to 20 hours of uninterrupted playback with the included charging case Each earbud provides up to 4 hours of continuous listening making these earbuds perfect for all day music sessions 5 Low Game Latency Designed for gamers these earbuds offer remarkably low latency for real time audio and video synchronization ensuring an immersive gaming experience where sound closely follows the action Specifications GeneralSpecificationBrandLenovoModelEA140ColorBlack WhiteWearing TypeSemi In earSpeaker10mmFrequency Response20Hz 20kHzbluetoothbluetooth VersionV5 4Supported ProfilesHSP HFP A2DP AVRCPTransmitting Distance10mBattery ChargingBattery Capacity30mAh Earbuds 180mAh Charging Case Work Time4h only Earbuds 20h with Charging Case Charging Time2h