Microlab B51 Stereo Speaker USB-Powered

Specification:
Amplifier:
Output power: 4 Watt RMS
Power distribution: 2 Watt x 2
Harmonic distortion: Less then 5 percent 1 W 1 kHz
Frequency response: 80 Hz - 18 kHz
Signal/Noise ratio: More then 65 dB
Separation: More then 40 dB

Speakers:
Speaker driver: 1.5" x 2
Speaker rated power: 3 Watt x 2 4 Ohm

Interfaces:
Input: 3.5 mm stereo

Power:
USB: 500 mA via DC5V adapter

Dimension:
Product dimension: 205(L) x 68(H) x 35(D) mm
Product net weight: 0.29 kg
Giftbox dimension: 215(L) x 85(W) x 38(H) mm
Product gross weight: 0.33 kg
Export carton dimension: 446(L) x 205(W) x 186(H) mm
Export carton gross weight: 7.0 kg (20 sets)