SXDD Electric Dog Fence, Ground & Underground Pet Containment System, Waterproof Receiver Collar for Easy Setup and Superior Longevity and Continued Reliable Pet Safety(for 1 23Dogs),for3dogs

package: 1 indoor wall-mounted transmitter; 1 x power plug 1/2/3 adjustable and rechargeable receiver collars; 1 x USB cable; 1 x 300m boundary line; 2 additiol metal contacts; 20 x training flags; 1 test bulb; 2 screws;

• 1. Waterproof smart dog underground pet fence system, a new type of smart dog underground pet fence system, with waterproof collar, the most reliable and cost-effective pet enclosure system.
• 2. This underground W-227b is the most reliable and cost-effective pet containment system available today.
• 3. The buried wire transmits harmless radius signals. When your dog approaches the border, this signal causes the dog's collar receiver to emit a warning buzzer first. If your dog continues to approach the border, the system will vibrate slightly. If your dog continues to walk, the system will emit a stronger vibration until your god returns to the boundary you set. Your dog will naturally seek to avoid correction, and his satisfaction stays within the established range
• 4. Pulse proportional stimulation, progressive tone stimulation, variable field width control, sound and visual disconnection indicator
• 5. Speed detection and anti-running through, built-in lightning protection, multiple necklines, and a maximum water meter range of 5000 square meters (more than 1.2 acres)