Haylou GT1 TWS 2022 Edition Earphone Specifications: Main Features:Frequency Range: 20-20,000HzImpedance: 32ΩSound Level/Sensitivity: 110 dBConnection Type: WirelessBattery:Battery Type: Built-inBattery Capacity:Earphone: 35mAhCharging Case: 310mAhDuration: Charging Time: 2 hoursPhysical Specifications:Connector: Bluetooth 5.2Drivers: 7.2mm composite diaphragm dynamic driverWeight: 35gColor: BlackWarranty: 3 MonthsThe Haylou GT1 TWS 2022 Edition offers a reliable wireless audio experience with solid battery life and impressive sound quality, making it a great option for everyday use.