A high-speed Ethernet apparatus having a multiple lane configuration and method for selectively operating the multiple lanes to allow lanes to participate or not in data transmission and reception. This physiological vaginal lubrication provides optimum support for spermatozoa survival and function within the female reproductive tract, specifically in the vagina and cervical mucus. The method has steps of tuning from a current RF channel to another RF channel to make a signal strength measurement, and reducing a time constant of the AGC circuit by shorting around the DC blocking capacitor. The sensing unit is disposed on a transmission path of the reflected light beam reflected by the working surface for receiving the reflected light beam.