The Delta SE dog training system simplifies training without compromising results. This bundle includes the new Delta SE handheld and Delta SE dog collar. Delta SE allows you to seamlessly operate your device without shifting focus away from your dog. Its ergonomic 3-button design provides 10 levels of momentary and continuous stimulation, tone and vibration in an easy-to-use system with up to a half-mile range. Whether at home or on the hunt, enjoy simple and intuitive training that features a slide switch to confidently transition between two dogs (Requires additional dog collar (sold separately)). The handheld has up to 70 hours of battery life.Features:Training with STIM:Continuous stimulation: allows you to control the length of the correction based on how long you hold the button down.Momentary stimulation: delivers a quick preset duration of stimulation (less than 1 second) for enforcing commands your dog already knows and for correcting behavior.