Product Details Connectivity : True Wireless Driver: 1 dynamic driver and 1 balanced aramature Bluetooth Version:Bluetooth 5.2Bluetooth range: 15mSensitivity: 101dB Weight of two earphones ˜ 12g Charging bin weight ˜ 36.3g Charging Bin power:300mA Configuration:10mm dual magnetic dynamic unit 30019 high frequency balanced armature What's in the box. Earphone ×1Charging case ×1earplugs ×2Packing box ×1Type-C charging cable ×1Manual ×1