Features:
<br />1) Can be expanded for yards up to five acres with the purchase of additional wire or flag kits  
<br />2) Pulsed proportional stimulus  
<br />3) Progressive tone stimulus  
<br />4) Low battery consumption  
<br />5) Speed detect anti-run through 
<br />6) Audible and visual wire break alarm
<br />7) Variable field width control  
<br />8) Quick disconnect terminal
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<br />More details
<br />    * This item is used to train dogs not to go out of the fixed area
<br />    * The sound and electric stimulation makes the dog remember the fixed area indelibly
<br />    * You can make a big fencing with the 300m wire
<br />    * The transmitter is sensitive to give the stimulation when the dog are approaching the boundary.
<br />    * There are attaching training flags to make the fencing area clear                                                        
<br />    * Adaptor output power DC 12V, 1000mA
<br />    * Adaptor output power DC 12V, 1000mA
<br />    * Collar input voltage DC 6V
<br />    * Collar output voltage AC 30V
<br />    * Size of the Transmitter 14.9 x 8.1 x 3.2 cm
<br />    * Size of the Training collar's receiver 6.8 x 4.2 x 3 cm
<br />    * Length of collar 49 cm
<br />    * Size of the Power adaptor 7.3 x 7 x 5 cm
<br />    * Size of the Training flag ø0.5 x 20 cm
<br />    * Length of wire 300m
<br />    * Material All are Plastic and metal 
<br /> 
<br /> Accessorics:
<br />1*Indoor wall-mounted transmitter
<br />1*Power plug
<br />1*Adjustable receiver collar
<br />1*6V battery for collar
<br />1*boundary wire of 300 M
<br />2*Extra metal contact points
<br />20* Training flags
<br />1*Test bulb
<br />4*screws
<br />1*Manual
<br /> Transmitter: :14.8*9.3*3.4CM   
<br /> Receiver::6.5*3.9*3.2CM
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<br />Product Description
<br />How does it work? 
<br />As your dog approaches unwarranted areas, the collar will make a slight beeping sound, thus notifying the dog that this area is off bounds.? The sound will continue to increase as the dog moves towards the fenced area. Please note that this sound has no physical side effects or damages the animal's health in anyway. Over time, your pet will begin to naturally respect safe playing areas, thus protecting your pet. 
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<br />The fencing system is able to cover up to 5,000 square meters (53,800 square feet), 1.2 acres of land, giving you a more reliable, economical and safe alternative to expensive wood or brick fencing.