KOKUYOSASI-40N 日本激光筆*Function:Visiblelightsemiconductorlaser*Output:1mWClassII*Wavelength:650nm*Max-range:50m*Battery:AAAx2*Batterylife:app.16hours FolexLP-650 日本激光筆*Function:Visiblelightsemiconductorlaser*Output:1mWClassII*Wavelength:650nm*Max-range:30m*Battery:AAAx2*Batterylife:app.8hours