You can use it as soon as you insert 2 optional batteries (AA) with built-in light source.
Because it is LED light source, it is power saving.
It is non waterproof.
By attaching the side view adapter, it is possible to observe directly beside it. (Side view adapter standard attached)
By using the optional digital camera adapter, you can easily record.
Since it is a lot lens type, lens aberration is small and clear observation is possible.