Instead, they receive electronic units that people agree to accept and treat like real money. (gfmag.com)
It also features electronic unit that plays music, nature sounds, heartbeat and provides light and vibrations to help your little one fall asleep in a fast but comfortable way. (followmum.com)
This handy little electronic unit has made what used to seem like a chore, almost a pleasure. (ecochildsplay.com)