Speaker Edifier M1550 

Overview:Mini home theatre/surround sound 5.1 multimedia speaker system Wooden MDF subwoofer enclosure Master volume control, green indicator, stand-by option, and line-out for headphone all included on wired remote controller Triple 3.5mm jacks accept both stereo input signal and 5.1 channel input signal 


Features:

 Total power output: RMS 4 x 3W + 4W + 10W x 1
THD + N (testing level): 10%
Signal to noise ratio: 85dBA
Distortion: 0.5%
Input sensitivity: Satellites: 350mV ± 50mV 
Subwoofer: 80mV ± 20mV
Input impedance: 10KΩ
Audio Input Type: 3.5mm Line in, Headphone jack
Adjustment: Wired remote control, volume control,
mute/play button, bass control on subwoofer
Subwoofer / bass unit: 4 inch (106mm), 
Magnetically Shielded, 6Ω
Midrange / high unit: 2 inch x 3½ inch (50mm ? 90mm),
Magnetically Shielded, 4Ω
Remote control: Wired: Volume adjustment, mute/play button, 
Headphone jack, LED indicator light
Dimensions: Subwoofer: 158mm x 226mm x 223mm 
Satellite front/surround: 68mm x 166mm x 86mm 
Center satellite: 160mm x 66mm x 60mm (WxHxD)
Weight: 4.50Kg (net)