The Innotek Smart Dog Deluxe SD-2100 electronic dog fencing system is among the safest, most humane, and effective training products you can buy - which is why it has become the most popular model on the market.

The SD-2100 uses NiMH rechargeable batteries in the waterproof collar and thus Saves you money in ongoing battery costs - you only need to recharge every 2-3 months.

Used properly, the collar receiver’s electronic stimulation serves as an annoying sensation that your dog finds undesirable. Your dog quickly learns to shut off the stimulation by staying away from the fencing boundary.

Once your dog is properly trained, he will enjoy hours of freedom within his new boundaries, and you will enjoy the comfort of knowing that he has learned to stay safely in your yard.

The receiver is attached to a nylon collar strap that your dog wears. The receiver sounds the warning tone and gives an annoying sensation should your dog attempt to leave the yard.

Your collar receiver is rechargeable, and is recharged by placing the collar receiver on the charging cradle located on top of your transmitter.

• Transmitter with battery back up and wire break alarm
• Patented "Run Through Prevention" offers secure, reliable containment
• Anti-Linger prevents a dog from lingering in the warning zone area and draining the battery quickly
• Early Warning Tone-Alerts your dog that he is about to get corrected if he doesn't go back
• Microline, rechargeable waterproof collar which is small enough for cats
• Reflective collar strap
• comes with 150m boundary wire & 50 training flags
• Can be expanded for yards up to 25 acres
• Rechargeable NiMH battery in receiver
• Instructional DVD and training manual