Speaker Edifier R1580MB

Power Output : R/L: 21W + 21W RMS
Noise level : 25dB(A)
Frequency response : 55Hz~20KHz
Microphone
dynamic range : -50~30dBV
Input sensitivity : PC: 700±50mV
AUX: 550±50mV
Bluetooth: 550±50mFFs
Input type : 1/4”, AUX, PC, Bluetooth
Midrange & bass unit : 4 inch (116mm)
Treble unit : 1/2 inch (13mm)
Bluetooth version : V4.0, A2DP and AVRCP protocol