Feature 1、Working Principle: Will give contact animals a stern warning when animals touch fence. It doesn't harm the animal. Animals are conditioned to stop touching the fence after a few warnings. 2、Safe to Use: The high voltage pulses give the animal a powerful, high voltage shock, but the shock will last for a short time, will not hurt animals. 3、High Performance: Can both manage the animals in the enclosure and ward off threats from outside species, good for keeping your animls safe. 4、Flexible Using: Easy to install, can be in the animal enclosure, pasture enclosure, rotation grazing, long and short term circle arbitrarily switch to build. 5、Application Scope: Suitable for pasture, farm, zoo, etc., can limit the activity range of captive animals, keeping animals from getting lost. Item Type: Electric Fence Charger Material: ABS Color: As Picture Shown Application: for Farm, Pasture, Temporary Electric Fence System, Etc Suitable Animals: Neutral Or Brutal Animals, Such As Sheep, Goats, Cows, Wolves And Jackals Gross Weight: Approx.2125g/75.0oz Product Size: 25x18.5x9cm/9.8x7.3x3.5in Available Size: 165 Acres Effective Length: 50 Miles Peak Storage Energy: 3J Peak Output Energy: 2J Type: Power Supply Series Purpose: Electric Fence Power Supply Package List 1 x Electric Fence Charger 1 x English Manual