Teach your little ones early on that oral hygiene is important and can be fun! Marcus & Marcus Kids Sonic Electric Toothbrush can be used alone or with our interactive LCD brushing timer. The same LCD monitor can be paired with more than one electric toothbrush so that the children can brush their teeth together, making it less monotonous! The extra soft silicone bristles are cut in a convex shape for the best care and comfort. The toothbrush will vibrate in 30 second intervals to indicate that its time to brush another part of your teeth. The vibrations are strong enough for a deep clean, yet still gentle enough for sensitive little mouths. , , CLEANING AND CARE: , Do not bleach, microwave or steam sterilise , Dentists recommend to replace brush every 6 months or sooner if toothbrush head looks worn. , Sonic silicone toothbrush: AAA alkaline battery operated, frequency 7000 oscillations/ min