"Protect your dog and others without blocking your view with our Cabela's GunDog In-Ground Fence Pet System. This electric pet fence system includes 500' of wire, 50 training flags, and a waterproof, rechargeable collar to keep your dog in an area you choose. 7 static stimulation levels and a tone/vibration-only mode teach your dog boundaries, plus the system is expandable to as much as 5 acres with additional wire and flags (not included). The collar charges in as little as 2 hours and provides a month or 2 of use. Anti-linger protection gives your dog static correction after they've remained in the warning zone for more than 2 seconds, overcorrection protection limits static stimulation to 15 seconds, and run-through prevention automatically increases static stimulation when your dog travels more than 20% of the way through the boundary distance. Transmitter includes a power adapter and the Cabela's GunDog In-Ground Fence Pet System includes all mounting hardware. Collar adjusts between 5"" and 22"" and is recommended for dogs over 8 lbs. Comes with an operating and training guide. Mfrs. 1-year warranty. 500' of wire and 50 training flags for enclosing up to 1/3 acre Waterproof, rechargeable collar adjusts from 5"" to 22"" Collar lasts a month or 2 and recharges in about 2 hours System can be expanded to cover up to 5 acres Anti-linger, overcorrection, and run-through protection Includes an operating and training guide"