ReliefBand is wearable tech for the treatment of nausea and vomiting associated with pregnancy. Just slip it on your wrist, adjust the intensity to suit your individual needs and within minutes you'll be feeling yourself again. Safe and highly effective, ReliefBand transdermal neurotechnology has been used by doctors for the treatment of post-operative nausea and vomiting, as well as morning sickness for nearly twenty years. ReliefBand has been subject to the rigors of numerous clinical trials and regulatory authorities - FDA (510(k) K020180). Bundle includes Reusable ReliefBand + two (2) EXTRA Maxell CR2025 Lithium Coin Cell + one (1) EXTRA Gel Tube. The ReliefBand includes two batteries and one gel, so you will get 4 batteries and 2 gels.