The WetlandHunter 1825 helps you build a customized remote training system to guarantee the best performance from your dog. This electronic remote training collar features a 1 mile range, up to 8 stimulation levels, plus vibration and tone options. Control up to 6 dogs by adding SportDOG Brand Add-A-Dog collars. The fully customizable SD-1825CAMO system is finished in Realtree Max-5 camo, and gives you the flexibility to program 2 or more transmitters to control the same Collar Receiver.   SD-1825CAMO Features:   Designed for the waterfowl environment with Realtree Max-5 camo finish 1 mile of range (1760 yards) 8 levels of shock in low, medium, and high ranges (set by collar) and the option to train with vibration (buzz) and tone (beep) Expandable to 6 dogs with purchase of additional Add-A-Dog collars (SDR-AW) Waterproof and submersible to 25 feet using DryTek technology Rechargeable lithium-ion batteries Remote batteries last 40 - 60 hours per charge Collar batteries last 140 - 160 hours per charge 2-hour quick charge with included split plug charger Fits dogs 8 pounds or larger with neck sizes 5" - 22" (small, medium, large, extra-large, giant) Remote Transmitter button functions can be customized Training tool for safety, off leash, recall, control, getting attention, obedience, correcting bad behavior, and ensuring commands are followed Detailed operating guide, training DVD, and a locally based Customer Care Center provide support when you need it   By designing our products in the field, with heat, cold, rain, snow, dust, mud, and wind in mind, SportDOG has become one of the most recognized brand in the electronic tracking and training categories, making the promise to always create "Gear The Way You'd Design It"