Someone remains loyal to the classic toothbrush, but many prefer the electric model, which takes care of the cleanliness of the teeth much better. However, it can be replaced by new automatic models called Be, working without batteries, accumulators and mains. The principle of operation of the new product is the same as that of its electrical counterparts: at a speed of 40 thousand revolutions per minute, it takes 120 seconds to perform hygiene procedures. At the end of cleaning, it beeps. The advantage is that the model does not require the purchase, replacement and recharge of the battery. It is powered by the kinetic energy of two springs. To start the mechanism, the user needs only two times to scroll a small wheel located at the base, and press the power button. So no more charging stations, no wires to keep handy. The kit comes with three interchangeable nozzles for the oral cavity, they are enough for a year of use, and an ergonomic cover case, convenient for traveling. All components are made of biodegradable materials. The cost of new items is $ 49.