The PD521 is a remote training collar with a 3,300 ft range, IPX7 waterproofing on the receiver, and three modes: beep, vibration and shock. The shock level adjusts across 16 steps while beep and vibration each have one level. It is built for off-leash work at distance, from recall to bark control, and fits dogs from 4 to 120 lbs. Compared with rivals, the long range and full waterproofing stand out, but the single vibration level and lack of a tone-only progressive setup give less fine control than premium trainers. Owners rate it highly, though shock collars draw criticism from trainers who prefer vibration-first methods.
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Owners rate the PD521 highly, praising its long range and reliable waterproof receiver. Criticism centers on the limited vibration settings and on shock use in general.
This is a remote-controlled electric dog training collar, model PD521. It has three training modes: beep, vibration and shock. The remote works from up to 1000 m (3300 ft).
The beep and vibration modes each have one level. The shock mode has 16 levels, so the intensity can be adjusted to the dog. The collar can also be used to help control excessive barking.
The collar is rated IPX7 waterproof. It fits dogs of all sizes, from 4 to 120 lbs.
