The present invention relates to an electric-mechanical-acoustic converter used mainly in a mobile telephone and the like, and its objective is to provide a high-quality product in which damage and degradation of performance caused by shock due to a drop are prevented. The compounds and compositions containing them are especially useful for combating fungal infections of plants. The volume forms part of accessible volumes in the virtual memory. The present design determines whether additional power is required to bump or move a large particle away from the needle tip.