Smart and eco-friendly toothbrush 1. Material biodegradable: The handle is made

Smart and eco-friendly toothbrush 1. Material biodegradable: The handle is made of bamboo or algae-derived bioplastic, completely compostable. 2. Interchangeable bristles: Instead of throwing away the entire brush, only the bristles are replaced, significantly reducing plastic waste. 3. pressure sensor: Alerts the user if they are applying too much force when brushing, protecting tooth enamel and gums. 4. Smart timer: Guides the user to brush for the recommended time, ensuring complete cleaning.