SportDOG WetlandHunter X-Series 1825 MAX5 1 Mile Range E-Collar

Designed for long distance control at 1 mile range; Built with lithium-ion batteries, this system features a 2 hour quick charge and low battery indicators; Tone, vibration, and 21 static stimulation levels allow you to customize training; Waterproof and submersible to 25 feet; Expandable to 6 dogs; Compatible for dogs 8 pounds or larger with neck sizes 5-22 inches; Receiver without strap: 3.15"L x 1.50"W x 1.85"D; Remote Transmitter with antenna: 7.10"L x 2.13"W x 1.24"D