Output power: 3W * 2
Power requirement: USB DC5V (2A for better performance)
Speaker size: 2.5 inches * 2
Volume control: independent volume line controller
Signal to noise ratio:>86dB
Frequency response range: 20Hz~20KHz
Sensitivity: 800mV
Speaker impedance: 40
Speaker size: 85 * 90 * 135mm
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