Much like the Sportdog SD1800, but smaller design for smaller dogs (8 Lbs and over). Durable and rugged enough for close-working hunting dogs.

Flexible enough to offer a wide choice of stimulation levels that will allow you to work with even the most sensitive dog. Continuous and momentary stimulation plus "hot" button and tone-only. One-hand operation with "tactile", thumb-activated slide-wheel makes changing levels easy, even with gloved hands. Stop-notches make returning to previous level easier.

Add-A-Dog capability lets you train up to three dogs with one system - each dog worked by a separate button. Choose from any of the Add-A-Dog extra receivers to customize your system.

The receivers and transmitter are waterproof (submersible) so your dog can take any terrain. Rechargeable batteries (last 3-5 years with proper care).

The SportDog SD-400 Electronic Dog Training Collar Features at a Glance:
• 400 yd range
• Pre-set with 16 levels of continuous & momentary correction changed. (8-levels continuous, 8-levels momentary with a separate tone-only)
• Easily changes to 7 unique button configurations to meet your specific training needs.
• Waterproof receiver and transmitter
• Expandable to three- dog system with purchase of any Sportdog add-a-dog additional receiver. (Constant stimulation only when expanded to three dogs)
• Transmitter and receiver powered by a no-memory, rechargeable (and user replaceable) NiMH battery. 15-20 hours of battery life after full 12 hour charge. (recharger/adapter included)
• Low battery indicators in both transmitter and receiver
• Backed by a lifetime warranty
• Includes Beginning Electronic Dog Training DVD