Each toothbrush comes with 2 heads, which is a 6 month supply.
(You should change your toothbrush head every 3 months)

No, they are not fully compostable.
While the brush head body is made from 100% natural bamboo, the bristles are made from Nylon 1010, a plant - based material derived from castor seed oil.

Although these bristles are a renewable, bio - based alternative to traditional petroleum plastics, they must be removed and disposed of in your regular waste bin.

Actually, it is even easier.
Unlike a manual brush, the sonic motor does the scrubbing for you. Simply hold the brush at a 45 - degree angle toward your gum line and slowly glide it across your teeth without applying heavy pressure.

The technique is different, but the clean is deeper. If you are used to a mechanical spinning brush, Vearthy’s sonic vibration might initially feel "too gentle." You might even think it isn’t cleaning as hard because you don't feel that aggressive scrubbing.

Instead of a physical scrub, our motor uses high - frequency pulses to vibrate the bristles. Just glide the brush along your teeth. It creates micro - bubbles that reach deep between teeth where spinning heads can't go.

Prepare for a different kind of clean. If you are used to a manual brush, your first instinct might be to scrub - but with sonic technology, less is more. Instead of manual strokes, the motor delivers thousands of vibrations per minute to break up plaque and sweep away debris. It will feel significantly different, but it provides a much deeper clean than manual brushing ever could. Just glide the bristles along your teeth and let the Vearthy sonic power do the heavy lifting.

About a month on a full charge with regular use. Set it on the wireless dock to top it up.