soundcore by Anker Liberty 4 NC Wireless Noise Cancelling Earbuds, 98.5% Noise Reduction, Adaptive Noise Cancelling to Ears and Environment, Hi-Res...

soundcore by Anker Liberty 4 NC Wireless Noise Cancelling Earbuds, 98.5% Noise Reduction, Adaptive Noise Cancelling to Ears and Environment, Hi-Res Sound, 50H Battery, Wireless Charging, Bluetooth 5.3 Type: Headphone Driver Unit: 11mm Frequency Response: 20Hz-20KHz Input Impedance: 10 ohms Signal to Noise Ratio(SNR): FB:68dBA ,FF & Talk 63dBA Power Supply: earbud: 0.212Wh , case: 3.069Wh Sensitivity: 123dBSPL, based on IEC711,126mV Weight: 54.96g