Energy Band-aid / Band-aid

The disadvantage of the daily used band-aid is that we are not quite sure about the healing grogress of the wound under the band cover without repeatedly taking off the band aid,which would detain the recovery of the wound.But Energy band-aid can show the healing progress by sending signal from special energy indicator,when your wound has fully recovered,the energy indicator will be full charged,
and you can remove the band-aid from the wound.