This is a 1 Dog system 

Upgradeable to as many dogs as you want just add an extra R220.00 per collar

Product Feature:

1. Pulsed Proportional Stimulus--The closer your dog gets to the boundary, the more intense the vibration will be.
2. Progressive Tone Stimulus--A warning tone will be issued first, then a vibration stimulus if your dog continues to move closer to the boundary.
3. Variable Field Width Control--Allows you to precisely control the width of the signal field.
4. Audible and Visual Wire Break Indicators--Should your buried wire ever break, a loud sonic alarm will sound accompanied by a flashing light.
5.Speed Detect Anti-Run through--The faster your dog is moving, the quicker the higher level of intensity is issued.
6. Built-in Lightining Protection--Protects transmitter from power surges caused by lightning stikes.
6. Multiple Collar Operation-- Add as many collars as you like to contain as many animals as you have. There is no limit to the number of collars it can control; Area Covered--Up to 5000 square meter range (over 1.2 acre).
7. Low Battery Consumption, quick disconnect terminals.

8.Transmitter: 14.8x9.3x3.4cm. Receiver: 6.5x3.9x3.2cm
9.Net weight: 533g

Packet content:

  100% Brand New

• 1 X Indoor wall-mounted transmitter

• 1 X 12V Power plug

• 3 X Adjustable receiver collar

• 1 X 6 Volt 4LR44 battery for collar

• 1 X 300 Meter Roll of fence Wire

• 20 X Training flags

• 1 X Test bulb

• 4 X Screws

• 1 X User's manual

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http://www.bidorbuy.co.za/seller/439777/wobblyg