Laser source Wavelength Bml221 1300nm & 850nm Bml223 1310nm & 1550nm Stabilization* 0.05db / 5minutes; 0.1db / 8hours Output power > - 5dbm Modulation 270hz, 1khz, 2khz Connecting adaptor Fc/pc Auto power off About 10 minutes Battery charge Yes Operate time Above 16 hours Power supply Aa * 2 Size 160mm * 75mm * 32mm Weight About 150g