Very bad quality / price ratio

This device sold 3 times its real price (70).
The battery has a useful life of approximately 18 to 24 months and more it is inaccessible and welded to deter yourselfers wanting to prolong its life.
The off button is found almost unusable over time.
Prefer a cheaper product that will give the same result, especially its use does not prevent the pastry from attaching to teeth.
In short, this is a product overrated and expensive to use.