Wirelessly Stream Music from Any Bluetooth Enabled Device with Bluetooth 5.1 Bluetooth Connecting Range: 10m BuiltIn Lithium Rechargeable Battery FM Radio AUX Input Compatible with most deviceswith a 3.5mm AUX output Hands Free Mic Easy picking up the call Speaker Size: 40mm Battery Capacity: 3.7V, 200mAh Frequency Response: 20Hz 20KHz Impedance: 32 Ohm Sensitivity: 58dB Play Time: Approx 6 hours Charging: Approx 2 hour.
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