An electronic fencing system, consisting of a transmitter, antenna cable, and collar, helps define a safe area for a dog, allowing the designation of "forbidden zones." Dimensions: 34 × 40 × 62 mm Weight: 60 grams (collar with batteries) Power supply: 6v 4LR44 battery Battery life: 6 months depending on frequency of use Adjustable neck circumference: from 20 to 50 centimeters Operating temperature: from -10 °C to +50 °C