What it is: An improved hybrid wave toothbrush featuring 2x stronger bounce-back bristles and 10,000x more hygienic than nylon silicone.What it does: The toothbrush features 16 speeds of Sonic Pulse technology for a completely customized brush. It helps improve overall oral hygiene and removes 30% more plaque than a manual toothbrush. It also helps prevent gum recession and damge to tooth enamel. The toothbrush should last up to 365 days on a single charge. How to use: Use your regular toothpaste and turn ISSA 3 on. Brush your teeth the same way as you would with a manual toothbrush for 2 minutes. Rinse your mouth and ISSA 3 with water. Use the ISSA 3 Tongue & Cheek Cleaner on the back of the brush to finish your brushing routine. Replace the ISSA brush head every 6 months by pulling and removing the old brush head and replacing with the new brush head.