This SportDOG SDR-AXW Camo RealTree Max-5 Collar Receiver is the perfect device for training and controlling up to 6 dogs at a range of up to 1 mile (1.6 km). It features a variety of control methods such as vibration, tone, and static/shock, with stimulation ranges of low, medium, and high. The collar is fully customizable and expandable with additional SDR-AXW collars, making it suitable for all dog sizes and breeds, including waterfowl dogs. The rechargeable lithium-ion battery lasts for 40-60 hours, with a low battery indicator and cradle charger for easy charging. The collar is also waterproof and submersible up to 25 feet, thanks to the DryTEK technology, and has a collar strap camo Realtree Max-5®. This device is sold exclusively by authorized SportDOG retailer PetMoods, and the handheld remote transmitter is not included.