Lenovo AirPods with Bluetooth 5 & Noise Reduction

Bluetooth version: 5.0Color classification: white black border [Bluetooth 5.0+ smart touch+surround stereo] white red border [Bluetooth 5.0+ smart touch+surround stereo] white gray border[Bluetooth 5.0+ smart touch+surround stereo]Headphone category: True wireless headphonesWaterproof performance: IPX4How to use: In-earTransmission radius: 10mWhether single and double ears: bilateral stereoSmart type: does not support smartStandby time: 20 daysTransmission radius: 10mConnection method between the left and right cavity of the headset: wireless connectionDustproof performance: IP5X