Driver Diameter : 14.2 mmImpedance : 32 ohmSensitivity :  106dBFrequency Response : 20 Hz – 20,000 HzMaximum Power Input : 3mWNoise Cancelling : NAConnector Plating : 3.5 mmCable Length : Tangle- FreeWeight : 14 gm..

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Product model no.M2137E1Earbud input parameters5V⎓ 100mACharging case input parameters5V⎓ 450mAWireless connectionBluetooth® 5.2Bluetooth protocolsHSP、HFP、A2DP、AVRCPOperating distance10m (open space free of obstacles)Single earbud net weightApprox. 4.5gTotal weight including charging caseApprox. 55gCharging portType-CSpeaker impedance16Ω±15%..

ModelETE11Charging Case ModelETE12ColorWhite / BlueDriver13.4 mm dynamic driverDriver sensitivity128 ± 3 dBFrequency response range20 Hz - 20 kHzMicrophone sensitivity-38 dBV / PaBluetooth® codecAAC / SBCBluetooth® version5.2Bluetooth® range10 mBattery typeRechargeable Li-ion CellBattery capacity27 mAh (Earbuds) /440 mAh (Charging Case)Playtime (50..