Features 1 Ergonomic Design Mini non pressing wireless earbuds designed specifically for sleep 2 Sleep Tuning App Integrated app with ASMR white noise and nature sounds for enhanced sleep 3 Noise Cancelling 24dB physical noise reduction for better sound insulation 4 High Quality Sound Small cavity design with 6mm TPU speaker for immersive sound experience 5 Long Battery Life Up to 27 hours of playback with charging case 10 hours standalone sleep mode 6 Lightweight Each earbud weighs only 2 8g ensuring comfortable wear all night 7 Comfortable Fit Skin friendly jelly silicone material that is non toxic and washable Specifications GeneralSpecificationBrandSanagModelJ20sColorBlack WhiteWearing TypeSemi in earSpeaker12mm long and 6mm wideWaterproofIPX5Frequency Response20Hz 20kHzbluetoothbluetooth VersionV5 4Supported ProfilesHSP HFP A2DP AVRCPTransmitting Distance10mBattery ChargingBattery Capacity35mAh Earbuds 400mAh Charging Case Music Time10h Sleep Mode 27h Use with Charging Case Charging Time2hOther FeaturesMicrophoneYesSizeWeightProduct Weight0 0600kgPackage Weight0 0800kgProduct Size49 35 38mmPackage Size70 50 50mmPackage list2 Earphones1 Charging Case1 Charging Cable1 User Manual