Waterproof, shockproof, and cow-proof, the collars direct cows using stimuli, such as sound and shock.

1. Farmers use the Halter software to allocate cows a preliminary area.

2. This geographic area can remain unchanged to keep cows stationary, or can be altered to herd cattle towards an end destination- such as the milking sheds.

3. Halter's collar herds cattle. 

Significantly, existing fencing and gating need not be removed. By simply keeping gateways open, Halter can freely function.