Electric epilators are devices that have rows of tweezers attached to a small electric motor which can pull hairs out by the root. Its working is similar like plucking.
These are mostly used for hair removal from legs and arms. The hair removal can last from several days to several weeks.

Advantages:-

Quick hair removal..
Suitable for use on arms and legs.
No expertise required can be done at home personally.
Some find it easy to use.

Disadvantages: _

Can be difficult to use on other areas like back of legs etc
May cause pinching of skin
May be uncomfortable or irritating on the sensitive areas.
Not effective to pull fine hairs
Short hairs are also not pulled.
Like other epilatory methods can cause ingrown hairs.