-69%
-5%Speaker Size: 40mm 7.1 Surround Sound Long Battery Life with approximately 25 hours Impedance: 32Ω+-15% Sensitivity: 105+-3db Frequency Range: 20HZ-20KHZ Microphone Size: 6.0*2.7mm Microphone Sensitivity: 105+-3dB Control Button: Yes LED Working Voltage: DC5V+-5% Working Curre
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