Electric Toothbrush With Pressure sensorPOWERFUL BATTERY The powerful battery has an impressive life of 45 days, so you dont have to constantly think about charging it. Once the battery is empty, simply put the toothbrush on the charger; a white light indicates when the toothbrush is fully charged. INTEGRATED PRESSURE SENSOR Too much pressure when brushing can cause long term damage to teeth and gums. To prevent this the TB 50 features an integrated pressure sensor, which warns the user by