Give your study or work area a breath of fresh air. Enjoy your favorite scents with the HoMedics® Essential Oil + Diffuser Gift Set. Each gift set comes with a ARMH-110GY portable diffuser. The ARMH-110GY diffuser is a waterless operation diffuser that used essential oil pads to release the scent. It can be run off of either 2 AAA batteries (not included) or a micro USB cord. The diffuser features color-changing light to create a gentle glow for a peaceful environment. The kit also includes three essential oil pads and 2 of our 15 mL essential oils. Start your collection off with the Relax blend, Inhale Deeply blend or classic peppermint or lemon essential oils. The included travel case fits all four included oils plus the unit, pad and micro USB cable for easy storage and travel.